Upstream/WordPress
1
0
Fork 0
mirror of https://github.com/WordPress/WordPress.git synced 2024-12-23 09:37:42 +01:00
Code Issues Projects Releases Wiki Activity
24090d065a
WordPress/wp-includes/link-template.php
Drew Jaynes 23707b1ada Convert various uses of (optional) in core parameter descriptions to use the style prescribed in the inline documentation standards for PHP. 
The style for marking parameters optional in inline PHP docs is: `@param type $var Optional. Description. Accepts. Default.`, where Accepts can be omitted on a case-by-case basis.

Props coffee2code.
Fixes #30591.

Built from https://develop.svn.wordpress.org/trunk@30753


git-svn-id: http://core.svn.wordpress.org/trunk@30743 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2014-12-06 21:24:45 +00:00

3322 lines
101 KiB
PHP
Raw Blame History

<?php
/**
* WordPress Link Template Functions
*
* @package WordPress
* @subpackage Template
*/
/**
* Display the permalink for the current post.
*
* @since 1.2.0
*/
function the_permalink() {
/**
* Filter the display of the permalink for the current post.
*
* @since 1.5.0
*
* @param string $permalink The permalink for the current post.
*/
echo esc_url( apply_filters( 'the_permalink', get_permalink() ) );
}
/**
* Retrieve trailing slash string, if blog set for adding trailing slashes.
*
* Conditionally adds a trailing slash if the permalink structure has a trailing
* slash, strips the trailing slash if not. The string is passed through the
* 'user_trailingslashit' filter. Will remove trailing slash from string, if
* blog is not set to have them.
*
* @since 2.2.0
* @uses $wp_rewrite
*
* @param string $string URL with or without a trailing slash.
* @param string $type_of_url The type of URL being considered (e.g. single, category, etc) for use in the filter.
* @return string The URL with the trailing slash appended or stripped.
*/
function user_trailingslashit($string, $type_of_url = '') {
global $wp_rewrite;
if ( $wp_rewrite->use_trailing_slashes )
$string = trailingslashit($string);
else
$string = untrailingslashit($string);
/**
* Filter the trailing slashed string, depending on whether the site is set
* to use training slashes.
*
* @since 2.2.0
*
* @param string $string URL with or without a trailing slash.
* @param string $type_of_url The type of URL being considered. Accepts 'single', 'single_trackback',
* 'single_feed', 'single_paged', 'feed', 'category', 'page', 'year',
* 'month', 'day', 'paged', 'post_type_archive'.
*/
$string = apply_filters( 'user_trailingslashit', $string, $type_of_url );
return $string;
}
/**
* Display permalink anchor for current post.
*
* The permalink mode title will use the post title for the 'a' element 'id'
* attribute. The id mode uses 'post-' with the post ID for the 'id' attribute.
*
* @since 0.71
*
* @param string $mode Permalink mode can be either 'title', 'id', or default, which is 'id'.
*/
function permalink_anchor( $mode = 'id' ) {
$post = get_post();
switch ( strtolower( $mode ) ) {
case 'title':
$title = sanitize_title( $post->post_title ) . '-' . $post->ID;
echo '<a id="'.$title.'"></a>';
break;
case 'id':
default:
echo '<a id="post-' . $post->ID . '"></a>';
break;
}
}
/**
* Retrieve full permalink for current post or post ID.
*
* This function is an alias for get_permalink().
*
* @since 3.9.0
*
* @see get_permalink()
*
* @param int|WP_Post $id Optional. Post ID or post object. Default is the current post.
* @param bool $leavename Optional. Whether to keep post name or page name. Default false.
* @return string|bool The permalink URL or false if post does not exist.
*/
function get_the_permalink( $id = 0, $leavename = false ) {
return get_permalink( $id, $leavename );
}
/**
* Retrieve full permalink for current post or post ID.
*
* @since 1.0.0
*
* @param int|WP_Post $id Optional. Post ID or post object. Default current post.
* @param bool $leavename Optional. Whether to keep post name or page name. Default false.
* @return string|bool The permalink URL or false if post does not exist.
*/
function get_permalink( $id = 0, $leavename = false ) {
$rewritecode = array(
'%year%',
'%monthnum%',
'%day%',
'%hour%',
'%minute%',
'%second%',
$leavename? '' : '%postname%',
'%post_id%',
'%category%',
'%author%',
$leavename? '' : '%pagename%',
);
if ( is_object($id) && isset($id->filter) && 'sample' == $id->filter ) {
$post = $id;
$sample = true;
} else {
$post = get_post($id);
$sample = false;
}
if ( empty($post->ID) )
return false;
if ( $post->post_type == 'page' )
return get_page_link($post, $leavename, $sample);
elseif ( $post->post_type == 'attachment' )
return get_attachment_link( $post, $leavename );
elseif ( in_array($post->post_type, get_post_types( array('_builtin' => false) ) ) )
return get_post_permalink($post, $leavename, $sample);
$permalink = get_option('permalink_structure');
/**
* Filter the permalink structure for a post before token replacement occurs.
*
* Only applies to posts with post_type of 'post'.
*
* @since 3.0.0
*
* @param string $permalink The site's permalink structure.
* @param WP_Post $post The post in question.
* @param bool $leavename Whether to keep the post name.
*/
$permalink = apply_filters( 'pre_post_link', $permalink, $post, $leavename );
if ( '' != $permalink && !in_array($post->post_status, array('draft', 'pending', 'auto-draft')) ) {
$unixtime = strtotime($post->post_date);
$category = '';
if ( strpos($permalink, '%category%') !== false ) {
$cats = get_the_category($post->ID);
if ( $cats ) {
usort($cats, '_usort_terms_by_ID'); // order by ID
/**
* Filter the category that gets used in the %category% permalink token.
*
* @since 3.5.0
*
* @param stdClass $cat The category to use in the permalink.
* @param array $cats Array of all categories associated with the post.
* @param WP_Post $post The post in question.
*/
$category_object = apply_filters( 'post_link_category', $cats[0], $cats, $post );
$category_object = get_term( $category_object, 'category' );
$category = $category_object->slug;
if ( $parent = $category_object->parent )
$category = get_category_parents($parent, false, '/', true) . $category;
}
// show default category in permalinks, without
// having to assign it explicitly
if ( empty($category) ) {
$default_category = get_term( get_option( 'default_category' ), 'category' );
$category = is_wp_error( $default_category ) ? '' : $default_category->slug;
}
}
$author = '';
if ( strpos($permalink, '%author%') !== false ) {
$authordata = get_userdata($post->post_author);
$author = $authordata->user_nicename;
}
$date = explode(" ",date('Y m d H i s', $unixtime));
$rewritereplace =
array(
$date[0],
$date[1],
$date[2],
$date[3],
$date[4],
$date[5],
$post->post_name,
$post->ID,
$category,
$author,
$post->post_name,
);
$permalink = home_url( str_replace($rewritecode, $rewritereplace, $permalink) );
$permalink = user_trailingslashit($permalink, 'single');
} else { // if they're not using the fancy permalink option
$permalink = home_url('?p=' . $post->ID);
}
/**
* Filter the permalink for a post.
*
* Only applies to posts with post_type of 'post'.
*
* @since 1.5.0
*
* @param string $permalink The post's permalink.
* @param WP_Post $post The post in question.
* @param bool $leavename Whether to keep the post name.
*/
return apply_filters( 'post_link', $permalink, $post, $leavename );
}
/**
* Retrieve the permalink for a post with a custom post type.
*
* @since 3.0.0
*
* @param int $id Optional. Post ID.
* @param bool $leavename Optional, defaults to false. Whether to keep post name.
* @param bool $sample Optional, defaults to false. Is it a sample permalink.
* @return string The post permalink.
*/
function get_post_permalink( $id = 0, $leavename = false, $sample = false ) {
global $wp_rewrite;
$post = get_post($id);
if ( is_wp_error( $post ) )
return $post;
$post_link = $wp_rewrite->get_extra_permastruct($post->post_type);
$slug = $post->post_name;
$draft_or_pending = isset($post->post_status) && in_array( $post->post_status, array( 'draft', 'pending', 'auto-draft' ) );
$post_type = get_post_type_object($post->post_type);
if ( $post_type->hierarchical ) {
$slug = get_page_uri( $id );
}
if ( !empty($post_link) && ( !$draft_or_pending || $sample ) ) {
if ( ! $leavename ) {
$post_link = str_replace("%$post->post_type%", $slug, $post_link);
}
$post_link = home_url( user_trailingslashit($post_link) );
} else {
if ( $post_type->query_var && ( isset($post->post_status) && !$draft_or_pending ) )
$post_link = add_query_arg($post_type->query_var, $slug, '');
else
$post_link = add_query_arg(array('post_type' => $post->post_type, 'p' => $post->ID), '');
$post_link = home_url($post_link);
}
/**
* Filter the permalink for a post with a custom post type.
*
* @since 3.0.0
*
* @param string $post_link The post's permalink.
* @param WP_Post $post The post in question.
* @param bool $leavename Whether to keep the post name.
* @param bool $sample Is it a sample permalink.
*/
return apply_filters( 'post_type_link', $post_link, $post, $leavename, $sample );
}
/**
* Retrieve permalink from post ID.
*
* @since 1.0.0
*
* @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global $post.
* @param mixed $deprecated Not used.
* @return string
*/
function post_permalink( $post_id = 0, $deprecated = '' ) {
if ( !empty( $deprecated ) )
_deprecated_argument( __FUNCTION__, '1.3' );
return get_permalink($post_id);
}
/**
* Retrieve the permalink for current page or page ID.
*
* Respects page_on_front. Use this one.
*
* @since 1.5.0
*
* @param int|object $post Optional. Post ID or object.
* @param bool $leavename Optional, defaults to false. Whether to keep page name.
* @param bool $sample Optional, defaults to false. Is it a sample permalink.
* @return string The page permalink.
*/
function get_page_link( $post = false, $leavename = false, $sample = false ) {
$post = get_post( $post );
if ( 'page' == get_option( 'show_on_front' ) && $post->ID == get_option( 'page_on_front' ) )
$link = home_url('/');
else
$link = _get_page_link( $post, $leavename, $sample );
/**
* Filter the permalink for a page.
*
* @since 1.5.0
*
* @param string $link The page's permalink.
* @param int $post_id The ID of the page.
* @param bool $sample Is it a sample permalink.
*/
return apply_filters( 'page_link', $link, $post->ID, $sample );
}
/**
* Retrieve the page permalink.
*
* Ignores page_on_front. Internal use only.
*
* @since 2.1.0
* @access private
*
* @param int|object $post Optional. Post ID or object.
* @param bool $leavename Optional. Leave name.
* @param bool $sample Optional. Sample permalink.
* @return string The page permalink.
*/
function _get_page_link( $post = false, $leavename = false, $sample = false ) {
global $wp_rewrite;
$post = get_post( $post );
$draft_or_pending = in_array( $post->post_status, array( 'draft', 'pending', 'auto-draft' ) );
$link = $wp_rewrite->get_page_permastruct();
if ( !empty($link) && ( ( isset($post->post_status) && !$draft_or_pending ) || $sample ) ) {
if ( ! $leavename ) {
$link = str_replace('%pagename%', get_page_uri( $post ), $link);
}
$link = home_url($link);
$link = user_trailingslashit($link, 'page');
} else {
$link = home_url( '?page_id=' . $post->ID );
}
/**
* Filter the permalink for a non-page_on_front page.
*
* @since 2.1.0
*
* @param string $link The page's permalink.
* @param int $post_id The ID of the page.
*/
return apply_filters( '_get_page_link', $link, $post->ID );
}
/**
* Retrieve permalink for attachment.
*
* This can be used in the WordPress Loop or outside of it.
*
* @since 2.0.0
*
* @param int|object $post Optional. Post ID or object.
* @param bool $leavename Optional. Leave name.
* @return string The attachment permalink.
*/
function get_attachment_link( $post = null, $leavename = false ) {
global $wp_rewrite;
$link = false;
$post = get_post( $post );
$parent = ( $post->post_parent > 0 && $post->post_parent != $post->ID ) ? get_post( $post->post_parent ) : false;
if ( $wp_rewrite->using_permalinks() && $parent ) {
if ( 'page' == $parent->post_type )
$parentlink = _get_page_link( $post->post_parent ); // Ignores page_on_front
else
$parentlink = get_permalink( $post->post_parent );
if ( is_numeric($post->post_name) || false !== strpos(get_option('permalink_structure'), '%category%') )
$name = 'attachment/' . $post->post_name; // <permalink>/<int>/ is paged so we use the explicit attachment marker
else
$name = $post->post_name;
if ( strpos($parentlink, '?') === false )
$link = user_trailingslashit( trailingslashit($parentlink) . '%postname%' );
if ( ! $leavename )
$link = str_replace( '%postname%', $name, $link );
}
if ( ! $link )
$link = home_url( '/?attachment_id=' . $post->ID );
/**
* Filter the permalink for an attachment.
*
* @since 2.0.0
*
* @param string $link The attachment's permalink.
* @param int $post_id Attachment ID.
*/
return apply_filters( 'attachment_link', $link, $post->ID );
}
/**
* Retrieve the permalink for the year archives.
*
* @since 1.5.0
*
* @param int|bool $year False for current year or year for permalink.
* @return string The permalink for the specified year archive.
*/
function get_year_link($year) {
global $wp_rewrite;
if ( !$year )
$year = gmdate('Y', current_time('timestamp'));
$yearlink = $wp_rewrite->get_year_permastruct();
if ( !empty($yearlink) ) {
$yearlink = str_replace('%year%', $year, $yearlink);
$yearlink = home_url( user_trailingslashit( $yearlink, 'year' ) );
} else {
$yearlink = home_url( '?m=' . $year );
}
/**
* Filter the year archive permalink.
*
* @since 1.5.0
*
* @param string $yearlink Permalink for the year archive.
* @param int $year Year for the archive.
*/
return apply_filters( 'year_link', $yearlink, $year );
}
/**
* Retrieve the permalink for the month archives with year.
*
* @since 1.0.0
*
* @param bool|int $year False for current year. Integer of year.
* @param bool|int $month False for current month. Integer of month.
* @return string The permalink for the specified month and year archive.
*/
function get_month_link($year, $month) {
global $wp_rewrite;
if ( !$year )
$year = gmdate('Y', current_time('timestamp'));
if ( !$month )
$month = gmdate('m', current_time('timestamp'));
$monthlink = $wp_rewrite->get_month_permastruct();
if ( !empty($monthlink) ) {
$monthlink = str_replace('%year%', $year, $monthlink);
$monthlink = str_replace('%monthnum%', zeroise(intval($month), 2), $monthlink);
$monthlink = home_url( user_trailingslashit( $monthlink, 'month' ) );
} else {
$monthlink = home_url( '?m=' . $year . zeroise( $month, 2 ) );
}
/**
* Filter the month archive permalink.
*
* @since 1.5.0
*
* @param string $monthlink Permalink for the month archive.
* @param int $year Year for the archive.
* @param int $month The month for the archive.
*/
return apply_filters( 'month_link', $monthlink, $year, $month );
}
/**
* Retrieve the permalink for the day archives with year and month.
*
* @since 1.0.0
*
* @param bool|int $year False for current year. Integer of year.
* @param bool|int $month False for current month. Integer of month.
* @param bool|int $day False for current day. Integer of day.
* @return string The permalink for the specified day, month, and year archive.
*/
function get_day_link($year, $month, $day) {
global $wp_rewrite;
if ( !$year )
$year = gmdate('Y', current_time('timestamp'));
if ( !$month )
$month = gmdate('m', current_time('timestamp'));
if ( !$day )
$day = gmdate('j', current_time('timestamp'));
$daylink = $wp_rewrite->get_day_permastruct();
if ( !empty($daylink) ) {
$daylink = str_replace('%year%', $year, $daylink);
$daylink = str_replace('%monthnum%', zeroise(intval($month), 2), $daylink);
$daylink = str_replace('%day%', zeroise(intval($day), 2), $daylink);
$daylink = home_url( user_trailingslashit( $daylink, 'day' ) );
} else {
$daylink = home_url( '?m=' . $year . zeroise( $month, 2 ) . zeroise( $day, 2 ) );
}
/**
* Filter the day archive permalink.
*
* @since 1.5.0
*
* @param string $daylink Permalink for the day archive.
* @param int $year Year for the archive.
* @param int $month Month for the archive.
* @param int $day The day for the archive.
*/
return apply_filters( 'day_link', $daylink, $year, $month, $day );
}
/**
* Display the permalink for the feed type.
*
* @since 3.0.0
*
* @param string $anchor The link's anchor text.
* @param string $feed Optional, defaults to default feed. Feed type.
*/
function the_feed_link( $anchor, $feed = '' ) {
$link = '<a href="' . esc_url( get_feed_link( $feed ) ) . '">' . $anchor . '</a>';
/**
* Filter the feed link anchor tag.
*
* @since 3.0.0
*
* @param string $link The complete anchor tag for a feed link.
* @param string $feed The feed type, or an empty string for the
* default feed type.
*/
echo apply_filters( 'the_feed_link', $link, $feed );
}
/**
* Retrieve the permalink for the feed type.
*
* @since 1.5.0
*
* @param string $feed Optional, defaults to default feed. Feed type.
* @return string The feed permalink.
*/
function get_feed_link($feed = '') {
global $wp_rewrite;
$permalink = $wp_rewrite->get_feed_permastruct();
if ( '' != $permalink ) {
if ( false !== strpos($feed, 'comments_') ) {
$feed = str_replace('comments_', '', $feed);
$permalink = $wp_rewrite->get_comment_feed_permastruct();
}
if ( get_default_feed() == $feed )
$feed = '';
$permalink = str_replace('%feed%', $feed, $permalink);
$permalink = preg_replace('#/+#', '/', "/$permalink");
$output = home_url( user_trailingslashit($permalink, 'feed') );
} else {
if ( empty($feed) )
$feed = get_default_feed();
if ( false !== strpos($feed, 'comments_') )
$feed = str_replace('comments_', 'comments-', $feed);
$output = home_url("?feed={$feed}");
}
/**
* Filter the feed type permalink.
*
* @since 1.5.0
*
* @param string $output The feed permalink.
* @param string $feed Feed type.
*/
return apply_filters( 'feed_link', $output, $feed );
}
/**
* Retrieve the permalink for the post comments feed.
*
* @since 2.2.0
*
* @param int $post_id Optional. Post ID.
* @param string $feed Optional. Feed type.
* @return string The permalink for the comments feed for the given post.
*/
function get_post_comments_feed_link($post_id = 0, $feed = '') {
$post_id = absint( $post_id );
if ( ! $post_id )
$post_id = get_the_ID();
if ( empty( $feed ) )
$feed = get_default_feed();
if ( '' != get_option('permalink_structure') ) {
if ( 'page' == get_option('show_on_front') && $post_id == get_option('page_on_front') )
$url = _get_page_link( $post_id );
else
$url = get_permalink($post_id);
$url = trailingslashit($url) . 'feed';
if ( $feed != get_default_feed() )
$url .= "/$feed";
$url = user_trailingslashit($url, 'single_feed');
} else {
$type = get_post_field('post_type', $post_id);
if ( 'page' == $type )
$url = add_query_arg( array( 'feed' => $feed, 'page_id' => $post_id ), home_url( '/' ) );
else
$url = add_query_arg( array( 'feed' => $feed, 'p' => $post_id ), home_url( '/' ) );
}
/**
* Filter the post comments feed permalink.
*
* @since 1.5.1
*
* @param string $url Post comments feed permalink.
*/
return apply_filters( 'post_comments_feed_link', $url );
}
/**
* Display the comment feed link for a post.
*
* Prints out the comment feed link for a post. Link text is placed in the
* anchor. If no link text is specified, default text is used. If no post ID is
* specified, the current post is used.
*
* @since 2.5.0
*
* @param string $link_text Descriptive text.
* @param int $post_id Optional post ID. Default to current post.
* @param string $feed Optional. Feed format.
* @return string Link to the comment feed for the current post.
*/
function post_comments_feed_link( $link_text = '', $post_id = '', $feed = '' ) {
$url = esc_url( get_post_comments_feed_link( $post_id, $feed ) );
if ( empty($link_text) )
$link_text = __('Comments Feed');
/**
* Filter the post comment feed link anchor tag.
*
* @since 2.8.0
*
* @param string $link The complete anchor tag for the comment feed link.
* @param int $post_id Post ID.
* @param string $feed The feed type, or an empty string for the default feed type.
*/
echo apply_filters( 'post_comments_feed_link_html', "<a href='$url'>$link_text</a>", $post_id, $feed );
}
/**
* Retrieve the feed link for a given author.
*
* Returns a link to the feed for all posts by a given author. A specific feed
* can be requested or left blank to get the default feed.
*
* @since 2.5.0
*
* @param int $author_id ID of an author.
* @param string $feed Optional. Feed type.
* @return string Link to the feed for the author specified by $author_id.
*/
function get_author_feed_link( $author_id, $feed = '' ) {
$author_id = (int) $author_id;
$permalink_structure = get_option('permalink_structure');
if ( empty($feed) )
$feed = get_default_feed();
if ( '' == $permalink_structure ) {
$link = home_url("?feed=$feed&amp;author=" . $author_id);
} else {
$link = get_author_posts_url($author_id);
if ( $feed == get_default_feed() )
$feed_link = 'feed';
else
$feed_link = "feed/$feed";
$link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
}
/**
* Filter the feed link for a given author.
*
* @since 1.5.1
*
* @param string $link The author feed link.
* @param string $feed Feed type.
*/
$link = apply_filters( 'author_feed_link', $link, $feed );
return $link;
}
/**
* Retrieve the feed link for a category.
*
* Returns a link to the feed for all posts in a given category. A specific feed
* can be requested or left blank to get the default feed.
*
* @since 2.5.0
*
* @param int $cat_id ID of a category.
* @param string $feed Optional. Feed type.
* @return string Link to the feed for the category specified by $cat_id.
*/
function get_category_feed_link($cat_id, $feed = '') {
return get_term_feed_link($cat_id, 'category', $feed);
}
/**
* Retrieve the feed link for a term.
*
* Returns a link to the feed for all posts in a given term. A specific feed
* can be requested or left blank to get the default feed.
*
* @since 3.0.0
*
* @param int $term_id ID of a category.
* @param string $taxonomy Optional. Taxonomy of $term_id
* @param string $feed Optional. Feed type.
* @return string Link to the feed for the term specified by $term_id and $taxonomy.
*/
function get_term_feed_link( $term_id, $taxonomy = 'category', $feed = '' ) {
$term_id = ( int ) $term_id;
$term = get_term( $term_id, $taxonomy );
if ( empty( $term ) || is_wp_error( $term ) )
return false;
if ( empty( $feed ) )
$feed = get_default_feed();
$permalink_structure = get_option( 'permalink_structure' );
if ( '' == $permalink_structure ) {
if ( 'category' == $taxonomy ) {
$link = home_url("?feed=$feed&amp;cat=$term_id");
}
elseif ( 'post_tag' == $taxonomy ) {
$link = home_url("?feed=$feed&amp;tag=$term->slug");
} else {
$t = get_taxonomy( $taxonomy );
$link = home_url("?feed=$feed&amp;$t->query_var=$term->slug");
}
} else {
$link = get_term_link( $term_id, $term->taxonomy );
if ( $feed == get_default_feed() )
$feed_link = 'feed';
else
$feed_link = "feed/$feed";
$link = trailingslashit( $link ) . user_trailingslashit( $feed_link, 'feed' );
}
if ( 'category' == $taxonomy ) {
/**
* Filter the category feed link.
*
* @since 1.5.1
*
* @param string $link The category feed link.
* @param string $feed Feed type.
*/
$link = apply_filters( 'category_feed_link', $link, $feed );
} elseif ( 'post_tag' == $taxonomy ) {
/**
* Filter the post tag feed link.
*
* @since 2.3.0
*
* @param string $link The tag feed link.
* @param string $feed Feed type.
*/
$link = apply_filters( 'tag_feed_link', $link, $feed );
} else {
/**
* Filter the feed link for a taxonomy other than 'category' or 'post_tag'.
*
* @since 3.0.0
*
* @param string $link The taxonomy feed link.
* @param string $feed Feed type.
* @param string $feed The taxonomy name.
*/
$link = apply_filters( 'taxonomy_feed_link', $link, $feed, $taxonomy );
}
return $link;
}
/**
* Retrieve permalink for feed of tag.
*
* @since 2.3.0
*
* @param int $tag_id Tag ID.
* @param string $feed Optional. Feed type.
* @return string The feed permalink for the given tag.
*/
function get_tag_feed_link($tag_id, $feed = '') {
return get_term_feed_link($tag_id, 'post_tag', $feed);
}
/**
* Retrieve edit tag link.
*
* @since 2.7.0
*
* @param int $tag_id Tag ID
* @param string $taxonomy Taxonomy
* @return string The edit tag link URL for the given tag.
*/
function get_edit_tag_link( $tag_id, $taxonomy = 'post_tag' ) {
/**
* Filter the edit link for a tag (or term in another taxonomy).
*
* @since 2.7.0
*
* @param string $link The term edit link.
*/
return apply_filters( 'get_edit_tag_link', get_edit_term_link( $tag_id, $taxonomy ) );
}
/**
* Display or retrieve edit tag link with formatting.
*
* @since 2.7.0
*
* @param string $link Optional. Anchor text.
* @param string $before Optional. Display before edit link.
* @param string $after Optional. Display after edit link.
* @param object $tag Tag object.
* @return string HTML content.
*/
function edit_tag_link( $link = '', $before = '', $after = '', $tag = null ) {
$link = edit_term_link( $link, '', '', $tag, false );
/**
* Filter the anchor tag for the edit link for a tag (or term in another taxonomy).
*
* @since 2.7.0
*
* @param string $link The anchor tag for the edit link.
*/
echo $before . apply_filters( 'edit_tag_link', $link ) . $after;
}
/**
* Retrieve edit term url.
*
* @since 3.1.0
*
* @param int $term_id Term ID
* @param string $taxonomy Taxonomy
* @param string $object_type The object type
* @return string The edit term link URL for the given term.
*/
function get_edit_term_link( $term_id, $taxonomy, $object_type = '' ) {
$tax = get_taxonomy( $taxonomy );
if ( !current_user_can( $tax->cap->edit_terms ) )
return;
$term = get_term( $term_id, $taxonomy );
$args = array(
'action' => 'edit',
'taxonomy' => $taxonomy,
'tag_ID' => $term->term_id,
);
if ( $object_type )
$args['post_type'] = $object_type;
$location = add_query_arg( $args, admin_url( 'edit-tags.php' ) );
/**
* Filter the edit link for a term.
*
* @since 3.1.0
*
* @param string $location The edit link.
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy name.
* @param string $object_type The object type (eg. the post type).
*/
return apply_filters( 'get_edit_term_link', $location, $term_id, $taxonomy, $object_type );
}
/**
* Display or retrieve edit term link with formatting.
*
* @since 3.1.0
*
* @param string $link Optional. Anchor text.
* @param string $before Optional. Display before edit link.
* @param string $after Optional. Display after edit link.
* @param object $term Term object.
* @return string HTML content.
*/
function edit_term_link( $link = '', $before = '', $after = '', $term = null, $echo = true ) {
if ( is_null( $term ) )
$term = get_queried_object();
if ( ! $term )
return;
$tax = get_taxonomy( $term->taxonomy );
if ( ! current_user_can( $tax->cap->edit_terms ) )
return;
if ( empty( $link ) )
$link = __('Edit This');
$link = '<a href="' . get_edit_term_link( $term->term_id, $term->taxonomy ) . '">' . $link . '</a>';
/**
* Filter the anchor tag for the edit link of a term.
*
* @since 3.1.0
*
* @param string $link The anchor tag for the edit link.
* @param int $term_id Term ID.
*/
$link = $before . apply_filters( 'edit_term_link', $link, $term->term_id ) . $after;
if ( $echo )
echo $link;
else
return $link;
}
/**
* Retrieve permalink for search.
*
* @since 3.0.0
*
* @param string $query Optional. The query string to use. If empty the current query is used.
* @return string The search permalink.
*/
function get_search_link( $query = '' ) {
global $wp_rewrite;
if ( empty($query) )
$search = get_search_query( false );
else
$search = stripslashes($query);
$permastruct = $wp_rewrite->get_search_permastruct();
if ( empty( $permastruct ) ) {
$link = home_url('?s=' . urlencode($search) );
} else {
$search = urlencode($search);
$search = str_replace('%2F', '/', $search); // %2F(/) is not valid within a URL, send it unencoded.
$link = str_replace( '%search%', $search, $permastruct );
$link = home_url( user_trailingslashit( $link, 'search' ) );
}
/**
* Filter the search permalink.
*
* @since 3.0.0
*
* @param string $link Search permalink.
* @param string $search The URL-encoded search term.
*/
return apply_filters( 'search_link', $link, $search );
}
/**
* Retrieve the permalink for the feed of the search results.
*
* @since 2.5.0
*
* @param string $search_query Optional. Search query.
* @param string $feed Optional. Feed type.
* @return string The search results feed permalink.
*/
function get_search_feed_link($search_query = '', $feed = '') {
global $wp_rewrite;
$link = get_search_link($search_query);
if ( empty($feed) )
$feed = get_default_feed();
$permastruct = $wp_rewrite->get_search_permastruct();
if ( empty($permastruct) ) {
$link = add_query_arg('feed', $feed, $link);
} else {
$link = trailingslashit($link);
$link .= "feed/$feed/";
}
/**
* Filter the search feed link.
*
* @since 2.5.0
*
* @param string $link Search feed link.
* @param string $feed Feed type.
* @param string $type The search type. One of 'posts' or 'comments'.
*/
$link = apply_filters( 'search_feed_link', $link, $feed, 'posts' );
return $link;
}
/**
* Retrieve the permalink for the comments feed of the search results.
*
* @since 2.5.0
*
* @param string $search_query Optional. Search query.
* @param string $feed Optional. Feed type.
* @return string The comments feed search results permalink.
*/
function get_search_comments_feed_link($search_query = '', $feed = '') {
global $wp_rewrite;
if ( empty($feed) )
$feed = get_default_feed();
$link = get_search_feed_link($search_query, $feed);
$permastruct = $wp_rewrite->get_search_permastruct();
if ( empty($permastruct) )
$link = add_query_arg('feed', 'comments-' . $feed, $link);
else
$link = add_query_arg('withcomments', 1, $link);
/** This filter is documented in wp-includes/link-template.php */
$link = apply_filters('search_feed_link', $link, $feed, 'comments');
return $link;
}
/**
* Retrieve the permalink for a post type archive.
*
* @since 3.1.0
*
* @param string $post_type Post type
* @return string The post type archive permalink.
*/
function get_post_type_archive_link( $post_type ) {
global $wp_rewrite;
if ( ! $post_type_obj = get_post_type_object( $post_type ) )
return false;
if ( ! $post_type_obj->has_archive )
return false;
if ( get_option( 'permalink_structure' ) && is_array( $post_type_obj->rewrite ) ) {
$struct = ( true === $post_type_obj->has_archive ) ? $post_type_obj->rewrite['slug'] : $post_type_obj->has_archive;
if ( $post_type_obj->rewrite['with_front'] )
$struct = $wp_rewrite->front . $struct;
else
$struct = $wp_rewrite->root . $struct;
$link = home_url( user_trailingslashit( $struct, 'post_type_archive' ) );
} else {
$link = home_url( '?post_type=' . $post_type );
}
/**
* Filter the post type archive permalink.
*
* @since 3.1.0
*
* @param string $link The post type archive permalink.
* @param string $post_type Post type name.
*/
return apply_filters( 'post_type_archive_link', $link, $post_type );
}
/**
* Retrieve the permalink for a post type archive feed.
*
* @since 3.1.0
*
* @param string $post_type Post type
* @param string $feed Optional. Feed type
* @return string The post type feed permalink.
*/
function get_post_type_archive_feed_link( $post_type, $feed = '' ) {
$default_feed = get_default_feed();
if ( empty( $feed ) )
$feed = $default_feed;
if ( ! $link = get_post_type_archive_link( $post_type ) )
return false;
$post_type_obj = get_post_type_object( $post_type );
if ( get_option( 'permalink_structure' ) && is_array( $post_type_obj->rewrite ) && $post_type_obj->rewrite['feeds'] ) {
$link = trailingslashit( $link );
$link .= 'feed/';
if ( $feed != $default_feed )
$link .= "$feed/";
} else {
$link = add_query_arg( 'feed', $feed, $link );
}
/**
* Filter the post type archive feed link.
*
* @since 3.1.0
*
* @param string $link The post type archive feed link.
* @param string $feed Feed type.
*/
return apply_filters( 'post_type_archive_feed_link', $link, $feed );
}
/**
* Retrieve edit posts link for post.
*
* Can be used within the WordPress loop or outside of it. Can be used with
* pages, posts, attachments, and revisions.
*
* @since 2.3.0
*
* @param int $id Optional. Post ID.
* @param string $context Optional, defaults to display. How to write the '&', defaults to '&amp;'.
* @return string The edit post link for the given post.
*/
function get_edit_post_link( $id = 0, $context = 'display' ) {
if ( ! $post = get_post( $id ) )
return;
if ( 'revision' === $post->post_type )
$action = '';
elseif ( 'display' == $context )
$action = '&amp;action=edit';
else
$action = '&action=edit';
$post_type_object = get_post_type_object( $post->post_type );
if ( !$post_type_object )
return;
if ( !current_user_can( 'edit_post', $post->ID ) )
return;
/**
* Filter the post edit link.
*
* @since 2.3.0
*
* @param string $link The edit link.
* @param int $post_id Post ID.
* @param string $context The link context. If set to 'display' then ampersands
* are encoded.
*/
return apply_filters( 'get_edit_post_link', admin_url( sprintf( $post_type_object->_edit_link . $action, $post->ID ) ), $post->ID, $context );
}
/**
* Display edit post link for post.
*
* @since 1.0.0
*
* @param string $text Optional. Anchor text.
* @param string $before Optional. Display before edit link.
* @param string $after Optional. Display after edit link.
* @param int $id Optional. Post ID.
*/
function edit_post_link( $text = null, $before = '', $after = '', $id = 0 ) {
if ( ! $post = get_post( $id ) ) {
return;
}
if ( ! $url = get_edit_post_link( $post->ID ) ) {
return;
}
if ( null === $text ) {
$text = __( 'Edit This' );
}
$link = '<a class="post-edit-link" href="' . $url . '">' . $text . '</a>';
/**
* Filter the post edit link anchor tag.
*
* @since 2.3.0
*
* @param string $link Anchor tag for the edit link.
* @param int $post_id Post ID.
* @param string $text Anchor text.
*/
echo $before . apply_filters( 'edit_post_link', $link, $post->ID, $text ) . $after;
}
/**
* Retrieve delete posts link for post.
*
* Can be used within the WordPress loop or outside of it, with any post type.
*
* @since 2.9.0
*
* @param int $id Optional. Post ID.
* @param string $deprecated Not used.
* @param bool $force_delete Whether to bypass trash and force deletion. Default is false.
* @return string The delete post link URL for the given post.
*/
function get_delete_post_link( $id = 0, $deprecated = '', $force_delete = false ) {
if ( ! empty( $deprecated ) )
_deprecated_argument( __FUNCTION__, '3.0' );
if ( !$post = get_post( $id ) )
return;
$post_type_object = get_post_type_object( $post->post_type );
if ( !$post_type_object )
return;
if ( !current_user_can( 'delete_post', $post->ID ) )
return;
$action = ( $force_delete || !EMPTY_TRASH_DAYS ) ? 'delete' : 'trash';
$delete_link = add_query_arg( 'action', $action, admin_url( sprintf( $post_type_object->_edit_link, $post->ID ) ) );
/**
* Filter the post delete link.
*
* @since 2.9.0
*
* @param string $link The delete link.
* @param int $post_id Post ID.
* @param bool $force_delete Whether to bypass the trash and force deletion. Default false.
*/
return apply_filters( 'get_delete_post_link', wp_nonce_url( $delete_link, "$action-post_{$post->ID}" ), $post->ID, $force_delete );
}
/**
* Retrieve edit comment link.
*
* @since 2.3.0
*
* @param int $comment_id Optional. Comment ID.
* @return string The edit comment link URL for the given comment.
*/
function get_edit_comment_link( $comment_id = 0 ) {
$comment = get_comment( $comment_id );
if ( !current_user_can( 'edit_comment', $comment->comment_ID ) )
return;
$location = admin_url('comment.php?action=editcomment&amp;c=') . $comment->comment_ID;
/**
* Filter the comment edit link.
*
* @since 2.3.0
*
* @param string $location The edit link.
*/
return apply_filters( 'get_edit_comment_link', $location );
}
/**
* Display edit comment link with formatting.
*
* @since 1.0.0
*
* @param string $text Optional. Anchor text.
* @param string $before Optional. Display before edit link.
* @param string $after Optional. Display after edit link.
*/
function edit_comment_link( $text = null, $before = '', $after = '' ) {
global $comment;
if ( ! current_user_can( 'edit_comment', $comment->comment_ID ) ) {
return;
}
if ( null === $text ) {
$text = __( 'Edit This' );
}
$link = '<a class="comment-edit-link" href="' . get_edit_comment_link( $comment->comment_ID ) . '">' . $text . '</a>';
/**
* Filter the comment edit link anchor tag.
*
* @since 2.3.0
*
* @param string $link Anchor tag for the edit link.
* @param int $comment_id Comment ID.
* @param string $text Anchor text.
*/
echo $before . apply_filters( 'edit_comment_link', $link, $comment->comment_ID, $text ) . $after;
}
/**
* Display edit bookmark (literally a URL external to blog) link.
*
* @since 2.7.0
*
* @param int $link Optional. Bookmark ID.
* @return string The edit bookmark link URL.
*/
function get_edit_bookmark_link( $link = 0 ) {
$link = get_bookmark( $link );
if ( !current_user_can('manage_links') )
return;
$location = admin_url('link.php?action=edit&amp;link_id=') . $link->link_id;
/**
* Filter the bookmark (link) edit link.
*
* @since 2.7.0
*
* @param string $location The edit link.
* @param int $link_id Bookmark ID.
*/
return apply_filters( 'get_edit_bookmark_link', $location, $link->link_id );
}
/**
* Display edit bookmark (literally a URL external to blog) link anchor content.
*
* @since 2.7.0
*
* @param string $link Optional. Anchor text.
* @param string $before Optional. Display before edit link.
* @param string $after Optional. Display after edit link.
* @param int $bookmark Optional. Bookmark ID.
*/
function edit_bookmark_link( $link = '', $before = '', $after = '', $bookmark = null ) {
$bookmark = get_bookmark($bookmark);
if ( !current_user_can('manage_links') )
return;
if ( empty($link) )
$link = __('Edit This');
$link = '<a href="' . get_edit_bookmark_link( $bookmark ) . '">' . $link . '</a>';
/**
* Filter the bookmark edit link anchor tag.
*
* @since 2.7.0
*
* @param string $link Anchor tag for the edit link.
* @param int $link_id Bookmark ID.
*/
echo $before . apply_filters( 'edit_bookmark_link', $link, $bookmark->link_id ) . $after;
}
/**
* Retrieve edit user link
*
* @since 3.5.0
*
* @param int $user_id Optional. User ID. Defaults to the current user.
* @return string URL to edit user page or empty string.
*/
function get_edit_user_link( $user_id = null ) {
if ( ! $user_id )
$user_id = get_current_user_id();
if ( empty( $user_id ) || ! current_user_can( 'edit_user', $user_id ) )
return '';
$user = get_userdata( $user_id );
if ( ! $user )
return '';
if ( get_current_user_id() == $user->ID )
$link = get_edit_profile_url( $user->ID );
else
$link = add_query_arg( 'user_id', $user->ID, self_admin_url( 'user-edit.php' ) );
/**
* Filter the user edit link.
*
* @since 3.5.0
*
* @param string $link The edit link.
* @param int $user_id User ID.
*/
return apply_filters( 'get_edit_user_link', $link, $user->ID );
}
// Navigation links
/**
* Retrieve previous post that is adjacent to current post.
*
* @since 1.5.0
*
* @param bool $in_same_term Optional. Whether post should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
* @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
*/
function get_previous_post( $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
return get_adjacent_post( $in_same_term, $excluded_terms, true, $taxonomy );
}
/**
* Retrieve next post that is adjacent to current post.
*
* @since 1.5.0
*
* @param bool $in_same_term Optional. Whether post should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
* @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
*/
function get_next_post( $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
return get_adjacent_post( $in_same_term, $excluded_terms, false, $taxonomy );
}
/**
* Retrieve adjacent post.
*
* Can either be next or previous post.
*
* @since 2.5.0
*
* @param bool $in_same_term Optional. Whether post should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param bool $previous Optional. Whether to retrieve previous post.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
* @return mixed Post object if successful. Null if global $post is not set. Empty string if no corresponding post exists.
*/
function get_adjacent_post( $in_same_term = false, $excluded_terms = '', $previous = true, $taxonomy = 'category' ) {
global $wpdb;
if ( ( ! $post = get_post() ) || ! taxonomy_exists( $taxonomy ) )
return null;
$current_post_date = $post->post_date;
$join = '';
$where = '';
if ( $in_same_term || ! empty( $excluded_terms ) ) {
$join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id INNER JOIN $wpdb->term_taxonomy tt ON tr.term_taxonomy_id = tt.term_taxonomy_id";
$where = $wpdb->prepare( "AND tt.taxonomy = %s", $taxonomy );
if ( ! empty( $excluded_terms ) && ! is_array( $excluded_terms ) ) {
// back-compat, $excluded_terms used to be $excluded_terms with IDs separated by " and "
if ( false !== strpos( $excluded_terms, ' and ' ) ) {
_deprecated_argument( __FUNCTION__, '3.3', sprintf( __( 'Use commas instead of %s to separate excluded terms.' ), "'and'" ) );
$excluded_terms = explode( ' and ', $excluded_terms );
} else {
$excluded_terms = explode( ',', $excluded_terms );
}
$excluded_terms = array_map( 'intval', $excluded_terms );
}
if ( $in_same_term ) {
if ( ! is_object_in_taxonomy( $post->post_type, $taxonomy ) )
return '';
$term_array = wp_get_object_terms( $post->ID, $taxonomy, array( 'fields' => 'ids' ) );
// Remove any exclusions from the term array to include.
$term_array = array_diff( $term_array, (array) $excluded_terms );
$term_array = array_map( 'intval', $term_array );
if ( ! $term_array || is_wp_error( $term_array ) )
return '';
$where .= " AND tt.term_id IN (" . implode( ',', $term_array ) . ")";
}
if ( ! empty( $excluded_terms ) ) {
$where .= " AND p.ID NOT IN ( SELECT tr.object_id FROM $wpdb->term_relationships tr LEFT JOIN $wpdb->term_taxonomy tt ON (tr.term_taxonomy_id = tt.term_taxonomy_id) WHERE tt.term_id IN (" . implode( $excluded_terms, ',' ) . ') )';
}
}
$adjacent = $previous ? 'previous' : 'next';
$op = $previous ? '<' : '>';
$order = $previous ? 'DESC' : 'ASC';
/**
* Filter the JOIN clause in the SQL for an adjacent post query.
*
* The dynamic portion of the hook name, `$adjacent`, refers to the type
* of adjacency, 'next' or 'previous'.
*
* @since 2.5.0
*
* @param string $join The JOIN clause in the SQL.
* @param bool $in_same_term Whether post should be in a same taxonomy term.
* @param array $excluded_terms Array of excluded term IDs.
*/
$join = apply_filters( "get_{$adjacent}_post_join", $join, $in_same_term, $excluded_terms );
/**
* Filter the WHERE clause in the SQL for an adjacent post query.
*
* The dynamic portion of the hook name, `$adjacent`, refers to the type
* of adjacency, 'next' or 'previous'.
*
* @since 2.5.0
*
* @param string $where The `WHERE` clause in the SQL.
* @param bool $in_same_term Whether post should be in a same taxonomy term.
* @param array $excluded_terms Array of excluded term IDs.
*/
$where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare( "WHERE p.post_date $op %s AND p.post_type = %s AND p.post_status = 'publish' $where", $current_post_date, $post->post_type ), $in_same_term, $excluded_terms );
/**
* Filter the ORDER BY clause in the SQL for an adjacent post query.
*
* The dynamic portion of the hook name, `$adjacent`, refers to the type
* of adjacency, 'next' or 'previous'.
*
* @since 2.5.0
*
* @param string $order_by The `ORDER BY` clause in the SQL.
*/
$sort = apply_filters( "get_{$adjacent}_post_sort", "ORDER BY p.post_date $order LIMIT 1" );
$query = "SELECT p.ID FROM $wpdb->posts AS p $join $where $sort";
$query_key = 'adjacent_post_' . md5( $query );
$result = wp_cache_get( $query_key, 'counts' );
if ( false !== $result ) {
if ( $result )
$result = get_post( $result );
return $result;
}
$result = $wpdb->get_var( $query );
if ( null === $result )
$result = '';
wp_cache_set( $query_key, $result, 'counts' );
if ( $result )
$result = get_post( $result );
return $result;
}
/**
* Get adjacent post relational link.
*
* Can either be next or previous post relational link.
*
* @since 2.8.0
*
* @param string $title Optional. Link title format.
* @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param bool $previous Optional. Whether to display link to previous or next post. Default true.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
* @return string The adjacent post relational link URL.
*/
function get_adjacent_post_rel_link( $title = '%title', $in_same_term = false, $excluded_terms = '', $previous = true, $taxonomy = 'category' ) {
if ( $previous && is_attachment() && $post = get_post() )
$post = get_post( $post->post_parent );
else
$post = get_adjacent_post( $in_same_term, $excluded_terms, $previous, $taxonomy );
if ( empty( $post ) )
return;
$post_title = the_title_attribute( array( 'echo' => false, 'post' => $post ) );
if ( empty( $post_title ) )
$post_title = $previous ? __( 'Previous Post' ) : __( 'Next Post' );
$date = mysql2date( get_option( 'date_format' ), $post->post_date );
$title = str_replace( '%title', $post_title, $title );
$title = str_replace( '%date', $date, $title );
$link = $previous ? "<link rel='prev' title='" : "<link rel='next' title='";
$link .= esc_attr( $title );
$link .= "' href='" . get_permalink( $post ) . "' />\n";
$adjacent = $previous ? 'previous' : 'next';
/**
* Filter the adjacent post relational link.
*
* The dynamic portion of the hook name, `$adjacent`, refers to the type
* of adjacency, 'next' or 'previous'.
*
* @since 2.8.0
*
* @param string $link The relational link.
*/
return apply_filters( "{$adjacent}_post_rel_link", $link );
}
/**
* Display relational links for the posts adjacent to the current post.
*
* @since 2.8.0
*
* @param string $title Optional. Link title format.
* @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
*/
function adjacent_posts_rel_link( $title = '%title', $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
echo get_adjacent_post_rel_link( $title, $in_same_term, $excluded_terms, true, $taxonomy );
echo get_adjacent_post_rel_link( $title, $in_same_term, $excluded_terms, false, $taxonomy );
}
/**
* Display relational links for the posts adjacent to the current post for single post pages.
*
* This is meant to be attached to actions like 'wp_head'. Do not call this directly in plugins or theme templates.
* @since 3.0.0
*
*/
function adjacent_posts_rel_link_wp_head() {
if ( ! is_single() || is_attachment() ) {
return;
}
adjacent_posts_rel_link();
}
/**
* Display relational link for the next post adjacent to the current post.
*
* @since 2.8.0
*
* @param string $title Optional. Link title format.
* @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
*/
function next_post_rel_link( $title = '%title', $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
echo get_adjacent_post_rel_link( $title, $in_same_term, $excluded_terms, false, $taxonomy );
}
/**
* Display relational link for the previous post adjacent to the current post.
*
* @since 2.8.0
*
* @param string $title Optional. Link title format.
* @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs. Default true.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
*/
function prev_post_rel_link( $title = '%title', $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
echo get_adjacent_post_rel_link( $title, $in_same_term, $excluded_terms, true, $taxonomy );
}
/**
* Retrieve boundary post.
*
* Boundary being either the first or last post by publish date within the constraints specified
* by $in_same_term or $excluded_terms.
*
* @since 2.8.0
*
* @param bool $in_same_term Optional. Whether returned post should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param bool $start Optional. Whether to retrieve first or last post.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
* @return mixed Array containing the boundary post object if successful, null otherwise.
*/
function get_boundary_post( $in_same_term = false, $excluded_terms = '', $start = true, $taxonomy = 'category' ) {
$post = get_post();
if ( ! $post || ! is_single() || is_attachment() || ! taxonomy_exists( $taxonomy ) )
return null;
$query_args = array(
'posts_per_page' => 1,
'order' => $start ? 'ASC' : 'DESC',
'update_post_term_cache' => false,
'update_post_meta_cache' => false
);
$term_array = array();
if ( ! is_array( $excluded_terms ) ) {
if ( ! empty( $excluded_terms ) )
$excluded_terms = explode( ',', $excluded_terms );
else
$excluded_terms = array();
}
if ( $in_same_term || ! empty( $excluded_terms ) ) {
if ( $in_same_term )
$term_array = wp_get_object_terms( $post->ID, $taxonomy, array( 'fields' => 'ids' ) );
if ( ! empty( $excluded_terms ) ) {
$excluded_terms = array_map( 'intval', $excluded_terms );
$excluded_terms = array_diff( $excluded_terms, $term_array );
$inverse_terms = array();
foreach ( $excluded_terms as $excluded_term )
$inverse_terms[] = $excluded_term * -1;
$excluded_terms = $inverse_terms;
}
$query_args[ 'tax_query' ] = array( array(
'taxonomy' => $taxonomy,
'terms' => array_merge( $term_array, $excluded_terms )
) );
}
return get_posts( $query_args );
}
/*
* Get previous post link that is adjacent to the current post.
*
* @since 3.7.0
*
* @param string $format Optional. Link anchor format.
* @param string $link Optional. Link permalink format.
* @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
* @return string The link URL of the previous post in relation to the current post.
*/
function get_previous_post_link( $format = '&laquo; %link', $link = '%title', $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
return get_adjacent_post_link( $format, $link, $in_same_term, $excluded_terms, true, $taxonomy );
}
/**
* Display previous post link that is adjacent to the current post.
*
* @since 1.5.0
* @see get_previous_post_link()
*
* @param string $format Optional. Link anchor format.
* @param string $link Optional. Link permalink format.
* @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
*/
function previous_post_link( $format = '&laquo; %link', $link = '%title', $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
echo get_previous_post_link( $format, $link, $in_same_term, $excluded_terms, $taxonomy );
}
/**
* Get next post link that is adjacent to the current post.
*
* @since 3.7.0
*
* @param string $format Optional. Link anchor format.
* @param string $link Optional. Link permalink format.
* @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
* @return string The link URL of the next post in relation to the current post.
*/
function get_next_post_link( $format = '%link &raquo;', $link = '%title', $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
return get_adjacent_post_link( $format, $link, $in_same_term, $excluded_terms, false, $taxonomy );
}
/**
* Display next post link that is adjacent to the current post.
*
* @since 1.5.0
* @see get_next_post_link()
*
* @param string $format Optional. Link anchor format.
* @param string $link Optional. Link permalink format.
* @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded term IDs.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
*/
function next_post_link( $format = '%link &raquo;', $link = '%title', $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
echo get_next_post_link( $format, $link, $in_same_term, $excluded_terms, $taxonomy );
}
/**
* Get adjacent post link.
*
* Can be either next post link or previous.
*
* @since 3.7.0
*
* @param string $format Link anchor format.
* @param string $link Link permalink format.
* @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded terms IDs.
* @param bool $previous Optional. Whether to display link to previous or next post. Default true.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
* @return string The link URL of the previous or next post in relation to the current post.
*/
function get_adjacent_post_link( $format, $link, $in_same_term = false, $excluded_terms = '', $previous = true, $taxonomy = 'category' ) {
if ( $previous && is_attachment() )
$post = get_post( get_post()->post_parent );
else
$post = get_adjacent_post( $in_same_term, $excluded_terms, $previous, $taxonomy );
if ( ! $post ) {
$output = '';
} else {
$title = $post->post_title;
if ( empty( $post->post_title ) )
$title = $previous ? __( 'Previous Post' ) : __( 'Next Post' );
/** This filter is documented in wp-includes/post-template.php */
$title = apply_filters( 'the_title', $title, $post->ID );
$date = mysql2date( get_option( 'date_format' ), $post->post_date );
$rel = $previous ? 'prev' : 'next';
$string = '<a href="' . get_permalink( $post ) . '" rel="'.$rel.'">';
$inlink = str_replace( '%title', $title, $link );
$inlink = str_replace( '%date', $date, $inlink );
$inlink = $string . $inlink . '</a>';
$output = str_replace( '%link', $inlink, $format );
}
$adjacent = $previous ? 'previous' : 'next';
/**
* Filter the adjacent post link.
*
* The dynamic portion of the hook name, `$adjacent`, refers to the type
* of adjacency, 'next' or 'previous'.
*
* @since 2.6.0
*
* @param string $output The adjacent post link.
* @param string $format Link anchor format.
* @param string $link Link permalink format.
* @param WP_Post $post The adjacent post.
*/
return apply_filters( "{$adjacent}_post_link", $output, $format, $link, $post );
}
/**
* Display adjacent post link.
*
* Can be either next post link or previous.
*
* @since 2.5.0
*
* @param string $format Link anchor format.
* @param string $link Link permalink format.
* @param bool $in_same_term Optional. Whether link should be in a same taxonomy term.
* @param array|string $excluded_terms Optional. Array or comma-separated list of excluded category IDs.
* @param bool $previous Optional. Whether to display link to previous or next post. Default true.
* @param string $taxonomy Optional. Taxonomy, if $in_same_term is true. Default 'category'.
*/
function adjacent_post_link( $format, $link, $in_same_term = false, $excluded_terms = '', $previous = true, $taxonomy = 'category' ) {
echo get_adjacent_post_link( $format, $link, $in_same_term, $excluded_terms, $previous, $taxonomy );
}
/**
* Retrieve links for page numbers.
*
* @since 1.5.0
*
* @param int $pagenum Optional. Page ID.
* @param bool $escape Optional. Whether to escape the URL for display, with esc_url(). Defaults to true.
* Otherwise, prepares the URL with esc_url_raw().
* @return string The link URL for the given page number.
*/
function get_pagenum_link($pagenum = 1, $escape = true ) {
global $wp_rewrite;
$pagenum = (int) $pagenum;
$request = remove_query_arg( 'paged' );
$home_root = parse_url(home_url());
$home_root = ( isset($home_root['path']) ) ? $home_root['path'] : '';
$home_root = preg_quote( $home_root, '|' );
$request = preg_replace('|^'. $home_root . '|i', '', $request);
$request = preg_replace('|^/+|', '', $request);
if ( !$wp_rewrite->using_permalinks() || is_admin() ) {
$base = trailingslashit( get_bloginfo( 'url' ) );
if ( $pagenum > 1 ) {
$result = add_query_arg( 'paged', $pagenum, $base . $request );
} else {
$result = $base . $request;
}
} else {
$qs_regex = '|\?.*?$|';
preg_match( $qs_regex, $request, $qs_match );
if ( !empty( $qs_match[0] ) ) {
$query_string = $qs_match[0];
$request = preg_replace( $qs_regex, '', $request );
} else {
$query_string = '';
}
$request = preg_replace( "|$wp_rewrite->pagination_base/\d+/?$|", '', $request);
$request = preg_replace( '|^' . preg_quote( $wp_rewrite->index, '|' ) . '|i', '', $request);
$request = ltrim($request, '/');
$base = trailingslashit( get_bloginfo( 'url' ) );
if ( $wp_rewrite->using_index_permalinks() && ( $pagenum > 1 || '' != $request ) )
$base .= $wp_rewrite->index . '/';
if ( $pagenum > 1 ) {
$request = ( ( !empty( $request ) ) ? trailingslashit( $request ) : $request ) . user_trailingslashit( $wp_rewrite->pagination_base . "/" . $pagenum, 'paged' );
}
$result = $base . $request . $query_string;
}
/**
* Filter the page number link for the current request.
*
* @since 2.5.0
*
* @param string $result The page number link.
*/
$result = apply_filters( 'get_pagenum_link', $result );
if ( $escape )
return esc_url( $result );
else
return esc_url_raw( $result );
}
/**
* Retrieve next posts page link.
*
* Backported from 2.1.3 to 2.0.10.
*
* @since 2.0.10
*
* @param int $max_page Optional. Max pages.
* @return string The link URL for next posts page.
*/
function get_next_posts_page_link($max_page = 0) {
global $paged;
if ( !is_single() ) {
if ( !$paged )
$paged = 1;
$nextpage = intval($paged) + 1;
if ( !$max_page || $max_page >= $nextpage )
return get_pagenum_link($nextpage);
}
}
/**
* Display or return the next posts page link.
*
* @since 0.71
*
* @param int $max_page Optional. Max pages.
* @param boolean $echo Optional. Echo or return;
* @return string The link URL for next posts page if `$echo = false`.
*/
function next_posts( $max_page = 0, $echo = true ) {
$output = esc_url( get_next_posts_page_link( $max_page ) );
if ( $echo )
echo $output;
else
return $output;
}
/**
* Return the next posts page link.
*
* @since 2.7.0
*
* @param string $label Content for link text.
* @param int $max_page Optional. Max pages.
* @return string|null HTML-formatted next posts page link.
*/
function get_next_posts_link( $label = null, $max_page = 0 ) {
global $paged, $wp_query;
if ( !$max_page )
$max_page = $wp_query->max_num_pages;
if ( !$paged )
$paged = 1;
$nextpage = intval($paged) + 1;
if ( null === $label )
$label = __( 'Next Page &raquo;' );
if ( !is_single() && ( $nextpage <= $max_page ) ) {
/**
* Filter the anchor tag attributes for the next posts page link.
*
* @since 2.7.0
*
* @param string $attributes Attributes for the anchor tag.
*/
$attr = apply_filters( 'next_posts_link_attributes', '' );
return '<a href="' . next_posts( $max_page, false ) . "\" $attr>" . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&#038;$1', $label) . '</a>';
}
}
/**
* Display the next posts page link.
*
* @since 0.71
*
* @param string $label Content for link text.
* @param int $max_page Optional. Max pages.
*/
function next_posts_link( $label = null, $max_page = 0 ) {
echo get_next_posts_link( $label, $max_page );
}
/**
* Retrieve previous posts page link.
*
* Will only return string, if not on a single page or post.
*
* Backported to 2.0.10 from 2.1.3.
*
* @since 2.0.10
*
* @return string|null The link for the previous posts page.
*/
function get_previous_posts_page_link() {
global $paged;
if ( !is_single() ) {
$nextpage = intval($paged) - 1;
if ( $nextpage < 1 )
$nextpage = 1;
return get_pagenum_link($nextpage);
}
}
/**
* Display or return the previous posts page link.
*
* @since 0.71
*
* @param boolean $echo Optional. Echo or return;
* @return string The previous posts page link if `$echo = false`.
*/
function previous_posts( $echo = true ) {
$output = esc_url( get_previous_posts_page_link() );
if ( $echo )
echo $output;
else
return $output;
}
/**
* Return the previous posts page link.
*
* @since 2.7.0
*
* @param string $label Optional. Previous page link text.
* @return string|null HTML-formatted previous page link.
*/
function get_previous_posts_link( $label = null ) {
global $paged;
if ( null === $label )
$label = __( '&laquo; Previous Page' );
if ( !is_single() && $paged > 1 ) {
/**
* Filter the anchor tag attributes for the previous posts page link.
*
* @since 2.7.0
*
* @param string $attributes Attributes for the anchor tag.
*/
$attr = apply_filters( 'previous_posts_link_attributes', '' );
return '<a href="' . previous_posts( false ) . "\" $attr>". preg_replace( '/&([^#])(?![a-z]{1,8};)/i', '&#038;$1', $label ) .'</a>';
}
}
/**
* Display the previous posts page link.
*
* @since 0.71
*
* @param string $label Optional. Previous page link text.
*/
function previous_posts_link( $label = null ) {
echo get_previous_posts_link( $label );
}
/**
* Return post pages link navigation for previous and next pages.
*
* @since 2.8.0
*
* @param string|array $args Optional args.
* @return string The posts link navigation.
*/
function get_posts_nav_link( $args = array() ) {
global $wp_query;
$return = '';
if ( !is_singular() ) {
$defaults = array(
'sep' => ' &#8212; ',
'prelabel' => __('&laquo; Previous Page'),
'nxtlabel' => __('Next Page &raquo;'),
);
$args = wp_parse_args( $args, $defaults );
$max_num_pages = $wp_query->max_num_pages;
$paged = get_query_var('paged');
//only have sep if there's both prev and next results
if ($paged < 2 || $paged >= $max_num_pages) {
$args['sep'] = '';
}
if ( $max_num_pages > 1 ) {
$return = get_previous_posts_link($args['prelabel']);
$return .= preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&#038;$1', $args['sep']);
$return .= get_next_posts_link($args['nxtlabel']);
}
}
return $return;
}
/**
* Display post pages link navigation for previous and next pages.
*
* @since 0.71
*
* @param string $sep Optional. Separator for posts navigation links.
* @param string $prelabel Optional. Label for previous pages.
* @param string $nxtlabel Optional Label for next pages.
*/
function posts_nav_link( $sep = '', $prelabel = '', $nxtlabel = '' ) {
$args = array_filter( compact('sep', 'prelabel', 'nxtlabel') );
echo get_posts_nav_link($args);
}
/**
* Return navigation to next/previous post when applicable.
*
* @since 4.1.0
*
* @param array $args {
* Optional. Default post navigation arguments. Default empty array.
*
* @type string $prev_text Anchor text to display in the previous post link. Default `%title`.
* @type string $next_text Anchor text to display in the next post link. Default `%title`.
* @type string $screen_reader_text Screen reader text for nav element. Default 'Post navigation'.
* }
* @return string Markup for post links.
*/
function get_the_post_navigation( $args = array() ) {
$args = wp_parse_args( $args, array(
'prev_text' => '%title',
'next_text' => '%title',
'screen_reader_text' => __( 'Post navigation' ),
) );
$navigation = '';
$previous = get_previous_post_link( '<div class="nav-previous">%link</div>', $args['prev_text'] );
$next = get_next_post_link( '<div class="nav-next">%link</div>', $args['next_text'] );
// Only add markup if there's somewhere to navigate to.
if ( $previous || $next ) {
$navigation = _navigation_markup( $previous . $next, 'post-navigation', $args['screen_reader_text'] );
}
return $navigation;
}
/**
* Display navigation to next/previous post when applicable.
*
* @since 4.1.0
*
* @param array $args Optional. See {@see get_the_post_navigation()} for available
* arguments. Default empty array.
*/
function the_post_navigation( $args = array() ) {
echo get_the_post_navigation( $args );
}
/**
* Return navigation to next/previous set of posts when applicable.
*
* @since 4.1.0
*
* @global WP_Query $wp_query WordPress Query object.
*
* @param array $args {
* Optional. Default paging navigation arguments. Default empty array.
*
* @type string $prev_text Anchor text to display in the previous posts link.
* Default 'Older posts'.
* @type string $next_text Anchor text to display in the next posts link.
* Default 'Newer posts'.
* @type string $screen_reader_text Screen reader text for nav element.
* Default 'Posts navigation'.
* }
* @return string Markup for paging links.
*/
function get_the_posts_navigation( $args = array() ) {
$navigation = '';
// Don't print empty markup if there's only one page.
if ( $GLOBALS['wp_query']->max_num_pages > 1 ) {
$args = wp_parse_args( $args, array(
'prev_text' => __( 'Older posts' ),
'next_text' => __( 'Newer posts' ),
'screen_reader_text' => __( 'Posts navigation' ),
) );
$next_link = get_previous_posts_link( $args['next_text'] );
$prev_link = get_next_posts_link( $args['prev_text'] );
if ( $prev_link ) {
$navigation .= '<div class="nav-previous">' . $prev_link . '</div>';
}
if ( $next_link ) {
$navigation .= '<div class="nav-next">' . $next_link . '</div>';
}
$navigation = _navigation_markup( $navigation, 'paging-navigation', $args['screen_reader_text'] );
}
return $navigation;
}
/**
* Display navigation to next/previous set of posts when applicable.
*
* @since 4.1.0
*
* @param array $args Optional. See {@see get_the_posts_navigation()} for available
* arguments. Default empty array.
*/
function the_posts_navigation( $args = array() ) {
echo get_the_posts_navigation( $args );
}
/**
* Return a paginated navigation to next/previous set of posts,
* when applicable.
*
* @since 4.1.0
*
* @param array $args {
* Optional. Default pagination arguments, {@see paginate_links()}.
*
* @type string $screen_reader_text Screen reader text for navigation element.
* Default 'Posts navigation'.
* }
* @return string Markup for pagination links.
*/
function get_the_pagination( $args = array() ) {
$navigation = '';
// Don't print empty markup if there's only one page.
if ( $GLOBALS['wp_query']->max_num_pages > 1 ) {
$args = wp_parse_args( $args, array(
'mid_size' => 1,
'prev_text' => __( 'Previous' ),
'next_text' => __( 'Next' ),
'screen_reader_text' => __( 'Posts navigation' ),
) );
// Make sure we get plain links, so we can work with it.
$args['type'] = 'plain';
// Set up paginated links.
$links = paginate_links( $args );
if ( $links ) {
$navigation = _navigation_markup( $links, 'pagination', $args['screen_reader_text'] );
}
}
return $navigation;
}
/**
* Display a paginated navigation to next/previous set of posts,
* when applicable.
*
* @since 4.1.0
*
* @param array $args Optional. See {@see get_the_pagination()} for available arguments.
* Default empty array.
*/
function the_pagination( $args = array() ) {
echo get_the_pagination( $args );
}
/**
* Wraps passed links in navigational markup.
*
* @since 4.1.0
* @access private
*
* @param string $links Navigational links.
* @param string $class Optional. Custom class for nav element. Default: 'paging-navigation'.
* @param string $screen_reader_text Optional. Screen reader text for nav element. Default: 'Posts navigation'.
* @return string Navigation template tag.
*/
function _navigation_markup( $links, $class = 'paging-navigation', $screen_reader_text = '' ) {
if ( empty( $screen_reader_text ) ) {
$screen_reader_text = __( 'Posts navigation' );
}
$template = '
<nav class="navigation %1$s" role="navigation">
<h2 class="screen-reader-text">%2$s</h2>
<div class="nav-links">%3$s</div>
</nav>';
return sprintf( $template, sanitize_html_class( $class ), esc_html( $screen_reader_text ), $links );
}
/**
* Retrieve comments page number link.
*
* @since 2.7.0
*
* @param int $pagenum Optional. Page number.
* @param int $max_page Optional. The maximum number of comment pages.
* @return string The comments page number link URL.
*/
function get_comments_pagenum_link( $pagenum = 1, $max_page = 0 ) {
global $wp_rewrite;
$pagenum = (int) $pagenum;
$result = get_permalink();
if ( 'newest' == get_option('default_comments_page') ) {
if ( $pagenum != $max_page ) {
if ( $wp_rewrite->using_permalinks() )
$result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged');
else
$result = add_query_arg( 'cpage', $pagenum, $result );
}
} elseif ( $pagenum > 1 ) {
if ( $wp_rewrite->using_permalinks() )
$result = user_trailingslashit( trailingslashit($result) . 'comment-page-' . $pagenum, 'commentpaged');
else
$result = add_query_arg( 'cpage', $pagenum, $result );
}
$result .= '#comments';
/**
* Filter the comments page number link for the current request.
*
* @since 2.7.0
*
* @param string $result The comments page number link.
*/
$result = apply_filters( 'get_comments_pagenum_link', $result );
return $result;
}
/**
* Return the link to next comments page.
*
* @since 2.7.1
*
* @param string $label Optional. Label for link text.
* @param int $max_page Optional. Max page.
* @return string|null HTML-formatted link for the next page of comments.
*/
function get_next_comments_link( $label = '', $max_page = 0 ) {
global $wp_query;
if ( !is_singular() || !get_option('page_comments') )
return;
$page = get_query_var('cpage');
$nextpage = intval($page) + 1;
if ( empty($max_page) )
$max_page = $wp_query->max_num_comment_pages;
if ( empty($max_page) )
$max_page = get_comment_pages_count();
if ( $nextpage > $max_page )
return;
if ( empty($label) )
$label = __('Newer Comments &raquo;');
/**
* Filter the anchor tag attributes for the next comments page link.
*
* @since 2.7.0
*
* @param string $attributes Attributes for the anchor tag.
*/
return '<a href="' . esc_url( get_comments_pagenum_link( $nextpage, $max_page ) ) . '" ' . apply_filters( 'next_comments_link_attributes', '' ) . '>'. preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&#038;$1', $label) .'</a>';
}
/**
* Display the link to next comments page.
*
* @since 2.7.0
*
* @param string $label Optional. Label for link text.
* @param int $max_page Optional. Max page.
*/
function next_comments_link( $label = '', $max_page = 0 ) {
echo get_next_comments_link( $label, $max_page );
}
/**
* Return the previous comments page link.
*
* @since 2.7.1
*
* @param string $label Optional. Label for comments link text.
* @return string|null HTML-formatted link for the previous page of comments.
*/
function get_previous_comments_link( $label = '' ) {
if ( !is_singular() || !get_option('page_comments') )
return;
$page = get_query_var('cpage');
if ( intval($page) <= 1 )
return;
$prevpage = intval($page) - 1;
if ( empty($label) )
$label = __('&laquo; Older Comments');
/**
* Filter the anchor tag attributes for the previous comments page link.
*
* @since 2.7.0
*
* @param string $attributes Attributes for the anchor tag.
*/
return '<a href="' . esc_url( get_comments_pagenum_link( $prevpage ) ) . '" ' . apply_filters( 'previous_comments_link_attributes', '' ) . '>' . preg_replace('/&([^#])(?![a-z]{1,8};)/i', '&#038;$1', $label) .'</a>';
}
/**
* Display the previous comments page link.
*
* @since 2.7.0
*
* @param string $label Optional. Label for comments link text.
*/
function previous_comments_link( $label = '' ) {
echo get_previous_comments_link( $label );
}
/**
* Create pagination links for the comments on the current post.
*
* @see paginate_links()
* @since 2.7.0
*
* @param string|array $args Optional args. See paginate_links().
* @return string Markup for pagination links.
*/
function paginate_comments_links($args = array()) {
global $wp_rewrite;
if ( !is_singular() || !get_option('page_comments') )
return;
$page = get_query_var('cpage');
if ( !$page )
$page = 1;
$max_page = get_comment_pages_count();
$defaults = array(
'base' => add_query_arg( 'cpage', '%#%' ),
'format' => '',
'total' => $max_page,
'current' => $page,
'echo' => true,
'add_fragment' => '#comments'
);
if ( $wp_rewrite->using_permalinks() )
$defaults['base'] = user_trailingslashit(trailingslashit(get_permalink()) . 'comment-page-%#%', 'commentpaged');
$args = wp_parse_args( $args, $defaults );
$page_links = paginate_links( $args );
if ( $args['echo'] )
echo $page_links;
else
return $page_links;
}
/**
* Retrieve the Press This bookmarklet link.
*
* Use this in 'a' element 'href' attribute.
*
* @since 2.6.0
*
* @return string The Press This bookmarklet link URL.
*/
function get_shortcut_link() {
// In case of breaking changes, version this. #WP20071
$link = "javascript:
var d=document,
w=window,
e=w.getSelection,
k=d.getSelection,
x=d.selection,
s=(e?e():(k)?k():(x?x.createRange().text:0)),
f='" . admin_url('press-this.php') . "',
l=d.location,
e=encodeURIComponent,
u=f+'?u='+e(l.href)+'&t='+e(d.title)+'&s='+e(s)+'&v=4';
a=function(){if(!w.open(u,'t','toolbar=0,resizable=1,scrollbars=1,status=1,width=720,height=570'))l.href=u;};
if (/Firefox/.test(navigator.userAgent)) setTimeout(a, 0); else a();
void(0)";
$link = str_replace(array("\r", "\n", "\t"), '', $link);
/**
* Filter the Press This bookmarklet link.
*
* @since 2.6.0
*
* @param string $link The Press This bookmarklet link.
*/
return apply_filters( 'shortcut_link', $link );
}
/**
* Retrieve the home url for the current site.
*
* Returns the 'home' option with the appropriate protocol, 'https' if
* {@see is_ssl()} and 'http' otherwise. If `$scheme` is 'http' or 'https',
* `is_ssl()` is overridden.
*
* @since 3.0.0
*
* @param string $path Optional. Path relative to the home url. Default empty.
* @param string $scheme Optional. Scheme to give the home url context. Accepts
* 'http', 'https', or 'relative'. Default null.
* @return string Home url link with optional path appended.
*/
function home_url( $path = '', $scheme = null ) {
return get_home_url( null, $path, $scheme );
}
/**
* Retrieve the home url for a given site.
*
* Returns the 'home' option with the appropriate protocol, 'https' if
* {@see is_ssl()} and 'http' otherwise. If `$scheme` is 'http' or 'https',
* `is_ssl()` is
* overridden.
*
* @since 3.0.0
*
* @param int $blog_id Optional. Blog ID. Default null (current blog).
* @param string $path Optional. Path relative to the home URL. Default empty.
* @param string|null $orig_scheme Optional. Scheme to give the home URL context. Accepts
* 'http', 'https', 'relative', or null. Default null.
* @return string Home URL link with optional path appended.
*/
function get_home_url( $blog_id = null, $path = '', $scheme = null ) {
$orig_scheme = $scheme;
if ( empty( $blog_id ) || !is_multisite() ) {
$url = get_option( 'home' );
} else {
switch_to_blog( $blog_id );
$url = get_option( 'home' );
restore_current_blog();
}
if ( ! in_array( $scheme, array( 'http', 'https', 'relative' ) ) ) {
if ( is_ssl() && ! is_admin() && 'wp-login.php' !== $GLOBALS['pagenow'] )
$scheme = 'https';
else
$scheme = parse_url( $url, PHP_URL_SCHEME );
}
$url = set_url_scheme( $url, $scheme );
if ( $path && is_string( $path ) )
$url .= '/' . ltrim( $path, '/' );
/**
* Filter the home URL.
*
* @since 3.0.0
*
* @param string $url The complete home URL including scheme and path.
* @param string $path Path relative to the home URL. Blank string if no path is specified.
* @param string|null $orig_scheme Scheme to give the home URL context. Accepts 'http', 'https', 'relative' or null.
* @param int|null $blog_id Blog ID, or null for the current blog.
*/
return apply_filters( 'home_url', $url, $path, $orig_scheme, $blog_id );
}
/**
* Retrieve the site url for the current site.
*
* Returns the 'site_url' option with the appropriate protocol, 'https' if
* is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
* overridden.
*
* @since 3.0.0
*
* @param string $path Optional. Path relative to the site url.
* @param string $scheme Optional. Scheme to give the site url context. See set_url_scheme().
* @return string Site url link with optional path appended.
*/
function site_url( $path = '', $scheme = null ) {
return get_site_url( null, $path, $scheme );
}
/**
* Retrieve the site url for a given site.
*
* Returns the 'site_url' option with the appropriate protocol, 'https' if
* {@see is_ssl()} and 'http' otherwise. If `$scheme` is 'http' or 'https',
* `is_ssl()` is overridden.
*
* @since 3.0.0
*
* @param int $blog_id Optional. Blog ID. Default null (current site).
* @param string $path Optional. Path relative to the site url. Default empty.
* @param string $scheme Optional. Scheme to give the site url context. Accepts
* 'http', 'https', 'login', 'login_post', 'admin', or
* 'relative'. Default null.
* @return string Site url link with optional path appended.
*/
function get_site_url( $blog_id = null, $path = '', $scheme = null ) {
if ( empty( $blog_id ) || !is_multisite() ) {
$url = get_option( 'siteurl' );
} else {
switch_to_blog( $blog_id );
$url = get_option( 'siteurl' );
restore_current_blog();
}
$url = set_url_scheme( $url, $scheme );
if ( $path && is_string( $path ) )
$url .= '/' . ltrim( $path, '/' );
/**
* Filter the site URL.
*
* @since 2.7.0
*
* @param string $url The complete site URL including scheme and path.
* @param string $path Path relative to the site URL. Blank string if no path is specified.
* @param string|null $scheme Scheme to give the site URL context. Accepts 'http', 'https', 'login',
* 'login_post', 'admin', 'relative' or null.
* @param int|null $blog_id Blog ID, or null for the current blog.
*/
return apply_filters( 'site_url', $url, $path, $scheme, $blog_id );
}
/**
* Retrieve the url to the admin area for the current site.
*
* @since 2.6.0
*
* @param string $path Optional path relative to the admin url.
* @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
* @return string Admin url link with optional path appended.
*/
function admin_url( $path = '', $scheme = 'admin' ) {
return get_admin_url( null, $path, $scheme );
}
/**
* Retrieves the url to the admin area for a given site.
*
* @since 3.0.0
*
* @param int $blog_id Optional. Blog ID. Default null (current site).
* @param string $path Optional. Path relative to the admin url. Default empty.
* @param string $scheme Optional. The scheme to use. Accepts 'http' or 'https',
* to force those schemes. Default 'admin', which obeys
* {@see force_ssl_admin()} and {@see is_ssl()}.
* @return string Admin url link with optional path appended.
*/
function get_admin_url( $blog_id = null, $path = '', $scheme = 'admin' ) {
$url = get_site_url($blog_id, 'wp-admin/', $scheme);
if ( $path && is_string( $path ) )
$url .= ltrim( $path, '/' );
/**
* Filter the admin area URL.
*
* @since 2.8.0
*
* @param string $url The complete admin area URL including scheme and path.
* @param string $path Path relative to the admin area URL. Blank string if no path is specified.
* @param int|null $blog_id Blog ID, or null for the current blog.
*/
return apply_filters( 'admin_url', $url, $path, $blog_id );
}
/**
* Retrieve the url to the includes directory.
*
* @since 2.6.0
*
* @param string $path Optional. Path relative to the includes url.
* @param string $scheme Optional. Scheme to give the includes url context.
* @return string Includes url link with optional path appended.
*/
function includes_url( $path = '', $scheme = null ) {
$url = site_url( '/' . WPINC . '/', $scheme );
if ( $path && is_string( $path ) )
$url .= ltrim($path, '/');
/**
* Filter the URL to the includes directory.
*
* @since 2.8.0
*
* @param string $url The complete URL to the includes directory including scheme and path.
* @param string $path Path relative to the URL to the wp-includes directory. Blank string
* if no path is specified.
*/
return apply_filters( 'includes_url', $url, $path );
}
/**
* Retrieve the url to the content directory.
*
* @since 2.6.0
*
* @param string $path Optional. Path relative to the content url.
* @return string Content url link with optional path appended.
*/
function content_url($path = '') {
$url = set_url_scheme( WP_CONTENT_URL );
if ( $path && is_string( $path ) )
$url .= '/' . ltrim($path, '/');
/**
* Filter the URL to the content directory.
*
* @since 2.8.0
*
* @param string $url The complete URL to the content directory including scheme and path.
* @param string $path Path relative to the URL to the content directory. Blank string
* if no path is specified.
*/
return apply_filters( 'content_url', $url, $path);
}
/**
* Retrieve a URL within the plugins or mu-plugins directory.
*
* Defaults to the plugins directory URL if no arguments are supplied.
*
* @since 2.6.0
*
* @param string $path Optional. Extra path appended to the end of the URL, including
* the relative directory if $plugin is supplied. Default empty.
* @param string $plugin Optional. A full path to a file inside a plugin or mu-plugin.
* The URL will be relative to its directory. Default empty.
* Typically this is done by passing `__FILE__` as the argument.
* @return string Plugins URL link with optional paths appended.
*/
function plugins_url( $path = '', $plugin = '' ) {
$path = wp_normalize_path( $path );
$plugin = wp_normalize_path( $plugin );
$mu_plugin_dir = wp_normalize_path( WPMU_PLUGIN_DIR );
if ( !empty($plugin) && 0 === strpos($plugin, $mu_plugin_dir) )
$url = WPMU_PLUGIN_URL;
else
$url = WP_PLUGIN_URL;
$url = set_url_scheme( $url );
if ( !empty($plugin) && is_string($plugin) ) {
$folder = dirname(plugin_basename($plugin));
if ( '.' != $folder )
$url .= '/' . ltrim($folder, '/');
}
if ( $path && is_string( $path ) )
$url .= '/' . ltrim($path, '/');
/**
* Filter the URL to the plugins directory.
*
* @since 2.8.0
*
* @param string $url The complete URL to the plugins directory including scheme and path.
* @param string $path Path relative to the URL to the plugins directory. Blank string
* if no path is specified.
* @param string $plugin The plugin file path to be relative to. Blank string if no plugin
* is specified.
*/
return apply_filters( 'plugins_url', $url, $path, $plugin );
}
/**
* Retrieve the site url for the current network.
*
* Returns the site url with the appropriate protocol, 'https' if
* is_ssl() and 'http' otherwise. If $scheme is 'http' or 'https', is_ssl() is
* overridden.
*
* @since 3.0.0
*
* @param string $path Optional. Path relative to the site url.
* @param string $scheme Optional. Scheme to give the site url context. See set_url_scheme().
* @return string Site url link with optional path appended.
*/
function network_site_url( $path = '', $scheme = null ) {
if ( ! is_multisite() )
return site_url($path, $scheme);
$current_site = get_current_site();
if ( 'relative' == $scheme )
$url = $current_site->path;
else
$url = set_url_scheme( 'http://' . $current_site->domain . $current_site->path, $scheme );
if ( $path && is_string( $path ) )
$url .= ltrim( $path, '/' );
/**
* Filter the network site URL.
*
* @since 3.0.0
*
* @param string $url The complete network site URL including scheme and path.
* @param string $path Path relative to the network site URL. Blank string if
* no path is specified.
* @param string|null $scheme Scheme to give the URL context. Accepts 'http', 'https',
* 'relative' or null.
*/
return apply_filters( 'network_site_url', $url, $path, $scheme );
}
/**
* Retrieves the home url for the current network.
*
* Returns the home url with the appropriate protocol, 'https' {@see is_ssl()}
* and 'http' otherwise. If `$scheme` is 'http' or 'https', `is_ssl()` is
* overridden.
*
* @since 3.0.0
*
* @param string $path Optional. Path relative to the home url. Default empty.
* @param string $scheme Optional. Scheme to give the home url context. Accepts
* 'http', 'https', or 'relative'. Default null.
* @return string Home url link with optional path appended.
*/
function network_home_url( $path = '', $scheme = null ) {
if ( ! is_multisite() )
return home_url($path, $scheme);
$current_site = get_current_site();
$orig_scheme = $scheme;
if ( ! in_array( $scheme, array( 'http', 'https', 'relative' ) ) )
$scheme = is_ssl() && ! is_admin() ? 'https' : 'http';
if ( 'relative' == $scheme )
$url = $current_site->path;
else
$url = set_url_scheme( 'http://' . $current_site->domain . $current_site->path, $scheme );
if ( $path && is_string( $path ) )
$url .= ltrim( $path, '/' );
/**
* Filter the network home URL.
*
* @since 3.0.0
*
* @param string $url The complete network home URL including scheme and path.
* @param string $path Path relative to the network home URL. Blank string
* if no path is specified.
* @param string|null $orig_scheme Scheme to give the URL context. Accepts 'http', 'https',
* 'relative' or null.
*/
return apply_filters( 'network_home_url', $url, $path, $orig_scheme);
}
/**
* Retrieve the url to the admin area for the network.
*
* @since 3.0.0
*
* @param string $path Optional path relative to the admin url.
* @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
* @return string Admin url link with optional path appended.
*/
function network_admin_url( $path = '', $scheme = 'admin' ) {
if ( ! is_multisite() )
return admin_url( $path, $scheme );
$url = network_site_url('wp-admin/network/', $scheme);
if ( $path && is_string( $path ) )
$url .= ltrim($path, '/');
/**
* Filter the network admin URL.
*
* @since 3.0.0
*
* @param string $url The complete network admin URL including scheme and path.
* @param string $path Path relative to the network admin URL. Blank string if
* no path is specified.
*/
return apply_filters( 'network_admin_url', $url, $path );
}
/**
* Retrieve the url to the admin area for the current user.
*
* @since 3.0.0
*
* @param string $path Optional path relative to the admin url.
* @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
* @return string Admin url link with optional path appended.
*/
function user_admin_url( $path = '', $scheme = 'admin' ) {
$url = network_site_url('wp-admin/user/', $scheme);
if ( $path && is_string( $path ) )
$url .= ltrim($path, '/');
/**
* Filter the user admin URL for the current user.
*
* @since 3.1.0
*
* @param string $url The complete URL including scheme and path.
* @param string $path Path relative to the URL. Blank string if
* no path is specified.
*/
return apply_filters( 'user_admin_url', $url, $path );
}
/**
* Retrieve the url to the admin area for either the current blog or the network depending on context.
*
* @since 3.1.0
*
* @param string $path Optional path relative to the admin url.
* @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
* @return string Admin url link with optional path appended.
*/
function self_admin_url($path = '', $scheme = 'admin') {
if ( is_network_admin() )
return network_admin_url($path, $scheme);
elseif ( is_user_admin() )
return user_admin_url($path, $scheme);
else
return admin_url($path, $scheme);
}
/**
* Set the scheme for a URL
*
* @since 3.4.0
*
* @param string $url Absolute url that includes a scheme
* @param string $scheme Optional. Scheme to give $url. Currently 'http', 'https', 'login', 'login_post', 'admin', or 'relative'.
* @return string $url URL with chosen scheme.
*/
function set_url_scheme( $url, $scheme = null ) {
$orig_scheme = $scheme;
if ( ! $scheme ) {
$scheme = is_ssl() ? 'https' : 'http';
} elseif ( $scheme === 'admin' || $scheme === 'login' || $scheme === 'login_post' || $scheme === 'rpc' ) {
$scheme = is_ssl() || force_ssl_admin() ? 'https' : 'http';
} elseif ( $scheme !== 'http' && $scheme !== 'https' && $scheme !== 'relative' ) {
$scheme = is_ssl() ? 'https' : 'http';
}
$url = trim( $url );
if ( substr( $url, 0, 2 ) === '//' )
$url = 'http:' . $url;
if ( 'relative' == $scheme ) {
$url = ltrim( preg_replace( '#^\w+://[^/]*#', '', $url ) );
if ( $url !== '' && $url[0] === '/' )
$url = '/' . ltrim($url , "/ \t\n\r\0\x0B" );
} else {
$url = preg_replace( '#^\w+://#', $scheme . '://', $url );
}
/**
* Filter the resulting URL after setting the scheme.
*
* @since 3.4.0
*
* @param string $url The complete URL including scheme and path.
* @param string $scheme Scheme applied to the URL. One of 'http', 'https', or 'relative'.
* @param string $orig_scheme Scheme requested for the URL. One of 'http', 'https', 'login',
* 'login_post', 'admin', 'rpc', or 'relative'.
*/
return apply_filters( 'set_url_scheme', $url, $scheme, $orig_scheme );
}
/**
* Get the URL to the user's dashboard.
*
* If a user does not belong to any site, the global user dashboard is used. If the user belongs to the current site,
* the dashboard for the current site is returned. If the user cannot edit the current site, the dashboard to the user's
* primary blog is returned.
*
* @since 3.1.0
*
* @param int $user_id Optional. User ID. Defaults to current user.
* @param string $path Optional path relative to the dashboard. Use only paths known to both blog and user admins.
* @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl(). 'http' or 'https' can be passed to force those schemes.
* @return string Dashboard url link with optional path appended.
*/
function get_dashboard_url( $user_id = 0, $path = '', $scheme = 'admin' ) {
$user_id = $user_id ? (int) $user_id : get_current_user_id();
$blogs = get_blogs_of_user( $user_id );
if ( ! is_super_admin() && empty($blogs) ) {
$url = user_admin_url( $path, $scheme );
} elseif ( ! is_multisite() ) {
$url = admin_url( $path, $scheme );
} else {
$current_blog = get_current_blog_id();
if ( $current_blog && ( is_super_admin( $user_id ) || in_array( $current_blog, array_keys( $blogs ) ) ) ) {
$url = admin_url( $path, $scheme );
} else {
$active = get_active_blog_for_user( $user_id );
if ( $active )
$url = get_admin_url( $active->blog_id, $path, $scheme );
else
$url = user_admin_url( $path, $scheme );
}
}
/**
* Filter the dashboard URL for a user.
*
* @since 3.1.0
*
* @param string $url The complete URL including scheme and path.
* @param int $user_id The user ID.
* @param string $path Path relative to the URL. Blank string if no path is specified.
* @param string $scheme Scheme to give the URL context. Accepts 'http', 'https', 'login',
* 'login_post', 'admin', 'relative' or null.
*/
return apply_filters( 'user_dashboard_url', $url, $user_id, $path, $scheme);
}
/**
* Get the URL to the user's profile editor.
*
* @since 3.1.0
*
* @param int $user_id Optional. User ID. Defaults to current user.
* @param string $scheme The scheme to use. Default is 'admin', which obeys force_ssl_admin() and is_ssl().
* 'http' or 'https' can be passed to force those schemes.
* @return string Dashboard url link with optional path appended.
*/
function get_edit_profile_url( $user_id = 0, $scheme = 'admin' ) {
$user_id = $user_id ? (int) $user_id : get_current_user_id();
if ( is_user_admin() )
$url = user_admin_url( 'profile.php', $scheme );
elseif ( is_network_admin() )
$url = network_admin_url( 'profile.php', $scheme );
else
$url = get_dashboard_url( $user_id, 'profile.php', $scheme );
/**
* Filter the URL for a user's profile editor.
*
* @since 3.1.0
*
* @param string $url The complete URL including scheme and path.
* @param int $user_id The user ID.
* @param string $scheme Scheme to give the URL context. Accepts 'http', 'https', 'login',
* 'login_post', 'admin', 'relative' or null.
*/
return apply_filters( 'edit_profile_url', $url, $user_id, $scheme);
}
/**
* Output rel=canonical for singular queries.
*
* @since 2.9.0
*/
function rel_canonical() {
if ( !is_singular() )
return;
global $wp_the_query;
if ( !$id = $wp_the_query->get_queried_object_id() )
return;
$link = get_permalink( $id );
if ( $page = get_query_var('cpage') )
$link = get_comments_pagenum_link( $page );
echo "<link rel='canonical' href='$link' />\n";
}
/**
* Return a shortlink for a post, page, attachment, or blog.
*
* This function exists to provide a shortlink tag that all themes and plugins can target. A plugin must hook in to
* provide the actual shortlinks. Default shortlink support is limited to providing ?p= style links for posts.
* Plugins can short-circuit this function via the pre_get_shortlink filter or filter the output
* via the get_shortlink filter.
*
* @since 3.0.0.
*
* @param int $id A post or blog id. Default is 0, which means the current post or blog.
* @param string $context Whether the id is a 'blog' id, 'post' id, or 'media' id. If 'post', the post_type of the post is consulted. If 'query', the current query is consulted to determine the id and context. Default is 'post'.
* @param bool $allow_slugs Whether to allow post slugs in the shortlink. It is up to the plugin how and whether to honor this.
* @return string A shortlink or an empty string if no shortlink exists for the requested resource or if shortlinks are not enabled.
*/
function wp_get_shortlink($id = 0, $context = 'post', $allow_slugs = true) {
/**
* Filter whether to preempt generating a shortlink for the given post.
*
* Passing a truthy value to the filter will effectively short-circuit the
* shortlink-generation process, returning that value instead.
*
* @since 3.0.0
*
* @param bool|string $return Short-circuit return value. Either false or a URL string.
* @param int $id Post ID, or 0 for the current post.
* @param string $context The context for the link. One of 'post' or 'query',
* @param bool $allow_slugs Whether to allow post slugs in the shortlink.
*/
$shortlink = apply_filters( 'pre_get_shortlink', false, $id, $context, $allow_slugs );
if ( false !== $shortlink )
return $shortlink;
global $wp_query;
$post_id = 0;
if ( 'query' == $context && is_singular() ) {
$post_id = $wp_query->get_queried_object_id();
$post = get_post( $post_id );
} elseif ( 'post' == $context ) {
$post = get_post( $id );
if ( ! empty( $post->ID ) )
$post_id = $post->ID;
}
$shortlink = '';
// Return p= link for all public post types.
if ( ! empty( $post_id ) ) {
$post_type = get_post_type_object( $post->post_type );
if ( 'page' === $post->post_type && $post->ID == get_option( 'page_on_front' ) && 'page' == get_option( 'show_on_front' ) ) {
$shortlink = home_url( '/' );
} elseif ( $post_type->public ) {
$shortlink = home_url( '?p=' . $post_id );
}
}
/**
* Filter the shortlink for a post.
*
* @since 3.0.0
*
* @param string $shortlink Shortlink URL.
* @param int $id Post ID, or 0 for the current post.
* @param string $context The context for the link. One of 'post' or 'query',
* @param bool $allow_slugs Whether to allow post slugs in the shortlink. Not used by default.
*/
return apply_filters( 'get_shortlink', $shortlink, $id, $context, $allow_slugs );
}
/**
* Inject rel=shortlink into head if a shortlink is defined for the current page.
*
* Attached to the wp_head action.
*
* @since 3.0.0
*/
function wp_shortlink_wp_head() {
$shortlink = wp_get_shortlink( 0, 'query' );
if ( empty( $shortlink ) )
return;
echo "<link rel='shortlink' href='" . esc_url( $shortlink ) . "' />\n";
}
/**
* Send a Link: rel=shortlink header if a shortlink is defined for the current page.
*
* Attached to the wp action.
*
* @since 3.0.0
*/
function wp_shortlink_header() {
if ( headers_sent() )
return;
$shortlink = wp_get_shortlink(0, 'query');
if ( empty($shortlink) )
return;
header('Link: <' . $shortlink . '>; rel=shortlink', false);
}
/**
* Display the Short Link for a Post
*
* Must be called from inside "The Loop"
*
* Call like the_shortlink(__('Shortlinkage FTW'))
*
* @since 3.0.0
*
* @param string $text Optional The link text or HTML to be displayed. Defaults to 'This is the short link.'
* @param string $title Optional The tooltip for the link. Must be sanitized. Defaults to the sanitized post title.
* @param string $before Optional HTML to display before the link.
* @param string $after Optional HTML to display after the link.
*/
function the_shortlink( $text = '', $title = '', $before = '', $after = '' ) {
$post = get_post();
if ( empty( $text ) )
$text = __('This is the short link.');
if ( empty( $title ) )
$title = the_title_attribute( array( 'echo' => false ) );
$shortlink = wp_get_shortlink( $post->ID );
if ( !empty( $shortlink ) ) {
$link = '<a rel="shortlink" href="' . esc_url( $shortlink ) . '" title="' . $title . '">' . $text . '</a>';
/**
* Filter the shortlink anchor tag for a post.
*
* @since 3.0.0
*
* @param string $link Shortlink anchor tag.
* @param string $shortlink Shortlink URL.
* @param string $text Shortlink's text.
* @param string $title Shortlink's title attribute.
*/
$link = apply_filters( 'the_shortlink', $link, $shortlink, $text, $title );
echo $before, $link, $after;
}
}
Reference in New Issue View Git Blame Copy Permalink