Complete inline documentation for category-template.php, props jacobsantos, fixes #5634
git-svn-id: http://svn.automattic.com/wordpress/trunk@8975 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
azaozz
parent
2c3a8ecd98
commit
3be46dfb57
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@ -1,11 +1,28 @@
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<?php
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/**
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* Category Template Tags and API.
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*
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* @package WordPress
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* @subpackage Template
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*/
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/**
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* Retrieve category children list separated before and after the term IDs.
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*
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* @since 1.2.0
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*
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* @param int $id Category ID to retrieve children.
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* @param string $before Optional. Prepend before category term ID.
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* @param string $after Optional, default is empty string. Append after category term ID.
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* @param array $visited Optional. Category Term IDs that have already been added.
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* @return string
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*/
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function get_category_children( $id, $before = '/', $after = '', $visited = array() ) {
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if ( 0 == $id )
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return '';
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$chain = '';
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// TODO: consult hierarchy
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/** TODO: consult hierarchy */
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$cat_ids = get_all_category_ids();
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foreach ( (array) $cat_ids as $cat_id ) {
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if ( $cat_id == $id )
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@ -23,6 +40,15 @@ function get_category_children( $id, $before = '/', $after = '', $visited = arra
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return $chain;
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}
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/**
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* Retrieve category link URL.
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*
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* @since 1.0.0
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* @uses apply_filters() Calls 'category_link' filter on category link and category ID.
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*
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* @param int $category_id Category ID.
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* @return string
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*/
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function get_category_link( $category_id ) {
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global $wp_rewrite;
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$catlink = $wp_rewrite->get_category_permastruct();
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@ -45,7 +71,19 @@ function get_category_link( $category_id ) {
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return apply_filters( 'category_link', $catlink, $category_id );
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}
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function get_category_parents( $id, $link = FALSE, $separator = '/', $nicename = FALSE, $visited = array() ) {
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/**
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* Retrieve category parents with separator.
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*
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* @since 1.2.0
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*
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* @param int $id Category ID.
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* @param bool $link Optional, default is false. Whether to format with link.
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* @param string $separator Optional, default is '/'. How to separate categories.
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* @param bool $nicename Optional, default is false. Whether to use nice name for display.
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* @param array $visited Optional. Already linked to categories to prevent duplicates.
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* @return string
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*/
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function get_category_parents( $id, $link = false, $separator = '/', $nicename = false, $visited = array() ) {
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$chain = '';
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$parent = &get_category( $id );
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if ( is_wp_error( $parent ) )
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@ -68,6 +106,15 @@ function get_category_parents( $id, $link = FALSE, $separator = '/', $nicename =
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return $chain;
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}
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/**
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* Retrieve post categories.
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*
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* @since 0.71
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* @uses $post
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*
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* @param int $id Optional, default to current post ID. The post ID.
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* @return array
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*/
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function get_the_category( $id = false ) {
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global $post;
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@ -91,10 +138,36 @@ function get_the_category( $id = false ) {
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return $categories;
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}
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/**
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* Sort categories by name.
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*
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* Used by usort() as a callback, should not be used directly. Can actually be
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* used to sort any term object.
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*
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* @since 2.3.0
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* @access private
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*
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* @param object $a
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* @param object $b
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* @return int
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*/
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function _usort_terms_by_name( $a, $b ) {
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return strcmp( $a->name, $b->name );
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}
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/**
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* Sort categories by ID.
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*
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* Used by usort() as a callback, should not be used directly. Can actually be
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* used to sort any term object.
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*
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* @since 2.3.0
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* @access private
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*
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* @param object $a
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* @param object $b
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* @return int
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*/
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function _usort_terms_by_ID( $a, $b ) {
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if ( $a->term_id > $b->term_id )
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return 1;
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@ -104,6 +177,14 @@ function _usort_terms_by_ID( $a, $b ) {
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return 0;
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}
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/**
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* Retrieve category name based on category ID.
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*
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* @since 0.71
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*
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* @param int $cat_ID Category ID.
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* @return string Category name.
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*/
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function get_the_category_by_ID( $cat_ID ) {
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$cat_ID = (int) $cat_ID;
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$category = &get_category( $cat_ID );
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@ -112,6 +193,16 @@ function get_the_category_by_ID( $cat_ID ) {
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return $category->name;
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}
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/**
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* Retrieve category list in either HTML list or custom format.
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*
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* @since 1.5.1
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*
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* @param string $separator Optional, default is empty string. Separator for between the categories.
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* @param string $parents Optional. How to display the parents.
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* @param int $post_id Optional. Post ID to retrieve categories.
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* @return string
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*/
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function get_the_category_list( $separator = '', $parents='', $post_id = false ) {
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global $wp_rewrite;
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$categories = get_the_category( $post_id );
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@ -128,13 +219,13 @@ function get_the_category_list( $separator = '', $parents='', $post_id = false )
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switch ( strtolower( $parents ) ) {
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case 'multiple':
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if ( $category->parent )
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$thelist .= get_category_parents( $category->parent, TRUE );
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$thelist .= get_category_parents( $category->parent, true );
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$thelist .= '<a href="' . get_category_link( $category->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $category->name ) . '" ' . $rel . '>' . $category->name.'</a></li>';
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break;
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case 'single':
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$thelist .= '<a href="' . get_category_link( $category->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $category->name ) . '" ' . $rel . '>';
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if ( $category->parent )
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$thelist .= get_category_parents( $category->parent, FALSE );
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$thelist .= get_category_parents( $category->parent, false );
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$thelist .= $category->name.'</a></li>';
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break;
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case '':
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@ -151,13 +242,13 @@ function get_the_category_list( $separator = '', $parents='', $post_id = false )
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switch ( strtolower( $parents ) ) {
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case 'multiple':
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if ( $category->parent )
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$thelist .= get_category_parents( $category->parent, TRUE );
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$thelist .= get_category_parents( $category->parent, true );
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$thelist .= '<a href="' . get_category_link( $category->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $category->name ) . '" ' . $rel . '>' . $category->cat_name.'</a>';
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break;
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case 'single':
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$thelist .= '<a href="' . get_category_link( $category->term_id ) . '" title="' . sprintf( __( "View all posts in %s" ), $category->name ) . '" ' . $rel . '>';
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if ( $category->parent )
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$thelist .= get_category_parents( $category->parent, FALSE );
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$thelist .= get_category_parents( $category->parent, false );
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$thelist .= "$category->cat_name</a>";
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break;
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case '':
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@ -170,19 +261,20 @@ function get_the_category_list( $separator = '', $parents='', $post_id = false )
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return apply_filters( 'the_category', $thelist, $separator, $parents );
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}
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/*
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* in_category() - Checks whether the current post is within a particular category
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/**
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* Checks whether the current post is within a particular category.
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*
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* This function checks to see if the post is within the supplied category. The categoy
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* can be specified by number or name and will be checked as a name first to allow for categories with numeric names.
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* Note: Prior to v2.5 of WordPress category names where not supported.
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* This function checks to see if the post is within the supplied category. The
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* category can be specified by number or name and will be checked as a name
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* first to allow for categories with numeric names. Note: Prior to v2.5 of
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* WordPress category names were not supported.
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*
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* @since 1.2.0
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*
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* @param int|string $category
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* @return bool true if the post is in the supplied category
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* @param int|string $category Category ID or category name.
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* @return bool True, if the post is in the supplied category.
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*/
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function in_category( $category ) { // Check if the current post is in the given category
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function in_category( $category ) {
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global $post;
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if ( empty( $category ) )
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@ -204,10 +296,27 @@ function in_category( $category ) { // Check if the current post is in the given
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return false;
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}
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/**
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* Display the category list for the post.
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*
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* @since 0.71
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*
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* @param string $separator Optional, default is empty string. Separator for between the categories.
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* @param string $parents Optional. How to display the parents.
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* @param int $post_id Optional. Post ID to retrieve categories.
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*/
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function the_category( $separator = '', $parents='', $post_id = false ) {
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echo get_the_category_list( $separator, $parents, $post_id );
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}
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/**
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* Retrieve category description.
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*
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* @since 1.0.0
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*
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* @param int $category Optional. Category ID. Will use global category ID by default.
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* @return string Category description, available.
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*/
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function category_description( $category = 0 ) {
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global $cat;
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if ( !$category )
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@ -216,6 +325,39 @@ function category_description( $category = 0 ) {
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return get_term_field( 'description', $category, 'category' );
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}
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/**
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* Display or retrieve the HTML dropdown list of categories.
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*
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* The list of arguments is below:
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* 'show_option_all' (string) - Text to display for showing all categories.
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* 'show_option_none' (string) - Text to display for showing no categories.
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* 'orderby' (string) default is 'ID' - What column to use for ordering the
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* categories.
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* 'order' (string) default is 'ASC' - What direction to order categories.
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* 'show_last_update' (bool|int) default is 0 - See {@link get_categories()}
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* 'show_count' (bool|int) default is 0 - Whether to show how many posts are
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* in the category.
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* 'hide_empty' (bool|int) default is 1 - Whether to hide categories that
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* don't have any posts attached to them.
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* 'child_of' (int) default is 0 - See {@link get_categories()}.
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* 'exclude' (string) - See {@link get_categories()}.
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* 'echo' (bool|int) default is 1 - Whether to display or retrieve content.
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* 'depth' (int) - The max depth.
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* 'tab_index' (int) - Tab index for select element.
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* 'name' (string) - The name attribute value for selected element.
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* 'class' (string) - The class attribute value for selected element.
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* 'selected' (int) - Which category ID is selected.
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*
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* The 'hierarchical' argument, which is disabled by default, will override the
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* depth argument, unless it is true. When the argument is false, it will
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* display all of the categories. When it is enabled it will use the value in
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* the 'depth' argument.
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*
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* @since 2.1.0
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*
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* @param string|array $args Optional. Override default arguments.
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* @return string HTML content only if 'echo' argument is 0.
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*/
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function wp_dropdown_categories( $args = '' ) {
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$defaults = array(
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'show_option_all' => '', 'show_option_none' => '',
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@ -271,6 +413,38 @@ function wp_dropdown_categories( $args = '' ) {
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return $output;
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}
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/**
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* Display or retrieve the HTML list of categories.
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*
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* The list of arguments is below:
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* 'show_option_all' (string) - Text to display for showing all categories.
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* 'orderby' (string) default is 'ID' - What column to use for ordering the
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* categories.
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* 'order' (string) default is 'ASC' - What direction to order categories.
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* 'show_last_update' (bool|int) default is 0 - See {@link
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* walk_category_dropdown_tree()}
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* 'show_count' (bool|int) default is 0 - Whether to show how many posts are
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* in the category.
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* 'hide_empty' (bool|int) default is 1 - Whether to hide categories that
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* don't have any posts attached to them.
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* 'use_desc_for_title' (bool|int) default is 1 - Whether to use the
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* description instead of the category title.
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* 'feed' - See {@link get_categories()}.
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* 'feed_type' - See {@link get_categories()}.
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* 'feed_image' - See {@link get_categories()}.
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* 'child_of' (int) default is 0 - See {@link get_categories()}.
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* 'exclude' (string) - See {@link get_categories()}.
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* 'echo' (bool|int) default is 1 - Whether to display or retrieve content.
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* 'current_category' (int) - See {@link get_categories()}.
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* 'hierarchical' (bool) - See {@link get_categories()}.
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* 'title_li' (string) - See {@link get_categories()}.
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* 'depth' (int) - The max depth.
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*
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* @since 2.1.0
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*
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* @param string|array $args Optional. Override default arguments.
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* @return string HTML content only if 'echo' argument is 0.
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*/
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function wp_list_categories( $args = '' ) {
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$defaults = array(
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'show_option_all' => '', 'orderby' => 'name',
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@ -337,6 +511,35 @@ function wp_list_categories( $args = '' ) {
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return $output;
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}
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/**
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* Display tag cloud.
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*
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* The text size is set by the 'smallest' and 'largest' arguments, which will
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* use the 'unit' argument value for the CSS text size unit. The 'format'
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* argument can be 'flat' (default), 'list', or 'array'. The flat value for the
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* 'format' argument will separate tags with spaces. The list value for the
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* 'format' argument will format the tags in a UL HTML list. The array value for
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* the 'format' argument will return in PHP array type format.
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*
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* The 'orderby' argument will accept 'name' or 'count' and defaults to 'name'.
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* The 'order' is the direction to sort, defaults to 'ASC' and can be 'DESC'.
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*
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* The 'number' argument is how many tags to return. By default, the limit will
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* be to return the top 45 tags in the tag cloud list.
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*
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* The 'single_text' and 'multiple_text' arguments are used for the link title
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* for the tag link. If the tag only has one, it will use the text in the
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* 'single_text' or if it has more than one it will use 'multiple_text' instead.
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*
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* The 'exclude' and 'include' arguments are used for the {@link get_tags()}
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* function. Only one should be used, because only one will be used and the
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* other ignored, if they are both set.
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*
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* @since 2.3.0
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*
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* @param array|string $args Optional. Override default arguments.
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* @return array Generated tag cloud, only if no failures and 'array' is set for the 'format' argument.
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*/
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function wp_tag_cloud( $args = '' ) {
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$defaults = array(
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'smallest' => 8, 'largest' => 22, 'unit' => 'pt', 'number' => 45,
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@ -370,16 +573,33 @@ function wp_tag_cloud( $args = '' ) {
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}
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/**
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* Generates a tag cloud (heatmap) from provided data
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* Generates a tag cloud (heatmap) from provided data.
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*
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* TODO: Complete
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* The text size is set by the 'smallest' and 'largest' arguments, which will
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* use the 'unit' argument value for the CSS text size unit. The 'format'
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* argument can be 'flat' (default), 'list', or 'array'. The flat value for the
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* 'format' argument will separate tags with spaces. The list value for the
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* 'format' argument will format the tags in a UL HTML list. The array value for
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* the 'format' argument will return in PHP array type format.
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*
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* @since 2.6
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* The 'orderby' argument will accept 'name' or 'count' and defaults to 'name'.
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* The 'order' is the direction to sort, defaults to 'ASC' and can be 'DESC' or
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* 'RAND'.
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*
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* $tags = array of objects with the properties 'name', 'link', 'id', and 'count'
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* $args['format'] = 'flat' => whitespace separated, 'list' => UL, 'array' => array()
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* $args['orderby'] = 'name', 'count'
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*/
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* The 'number' argument is how many tags to return. By default, the limit will
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* be to return the entire tag cloud list.
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*
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* The 'single_text' and 'multiple_text' arguments are used for the link title
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* for the tag link. If the tag only has one, it will use the text in the
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* 'single_text' or if it has more than one it will use 'multiple_text' instead.
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*
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* @todo Complete functionality.
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* @since 2.3.0
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*
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* @param array $tags List of tags.
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* @param string|array $args Optional, override default arguments.
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* @return string
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*/
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function wp_generate_tag_cloud( $tags, $args = '' ) {
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global $wp_rewrite;
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$defaults = array(
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|
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@ -460,12 +680,26 @@ function wp_generate_tag_cloud( $tags, $args = '' ) {
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// Helper functions
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//
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/**
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* Retrieve HTML list content for category list.
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*
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* @uses Walker_Category to create HTML list content.
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* @since 2.1.0
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* @see Walker_Category::walk() for parameters and return description.
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*/
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function walk_category_tree() {
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$walker = new Walker_Category;
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$args = func_get_args();
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return call_user_func_array(array( &$walker, 'walk' ), $args );
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}
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/**
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* Retrieve HTML dropdown (select) content for category list.
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*
|
||||
* @uses Walker_CategoryDropdown to create HTML dropdown content.
|
||||
* @since 2.1.0
|
||||
* @see Walker_CategoryDropdown::walk() for parameters and return description.
|
||||
*/
|
||||
function walk_category_dropdown_tree() {
|
||||
$walker = new Walker_CategoryDropdown;
|
||||
$args = func_get_args();
|
||||
|
|
@ -476,6 +710,15 @@ function walk_category_dropdown_tree() {
|
|||
// Tags
|
||||
//
|
||||
|
||||
/**
|
||||
* Retrieve the link to the tag.
|
||||
*
|
||||
* @since 2.3.0
|
||||
* @uses apply_filters() Calls 'tag_link' with tag link and tag ID as parameters.
|
||||
*
|
||||
* @param int $tag_id Tag (term) ID.
|
||||
* @return string
|
||||
*/
|
||||
function get_tag_link( $tag_id ) {
|
||||
global $wp_rewrite;
|
||||
$taglink = $wp_rewrite->get_tag_permastruct();
|
||||
|
|
@ -495,18 +738,59 @@ function get_tag_link( $tag_id ) {
|
|||
return apply_filters( 'tag_link', $taglink, $tag_id );
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieve the tags for a post.
|
||||
*
|
||||
* @since 2.3.0
|
||||
* @uses apply_filters() Calls 'get_the_tags' filter on the list of post tags.
|
||||
*
|
||||
* @param int $id Post ID.
|
||||
* @return array
|
||||
*/
|
||||
function get_the_tags( $id = 0 ) {
|
||||
return apply_filters( 'get_the_tags', get_the_terms( $id, 'post_tag' ) );
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieve the tags for a post formatted as a string.
|
||||
*
|
||||
* @since 2.3.0
|
||||
* @uses apply_filters() Calls 'the_tags' filter on string list of tags.
|
||||
*
|
||||
* @param string $before Optional. Before tags.
|
||||
* @param string $sep Optional. Between tags.
|
||||
* @param string $after Optional. After tags.
|
||||
* @return string
|
||||
*/
|
||||
function get_the_tag_list( $before = '', $sep = '', $after = '' ) {
|
||||
return apply_filters( 'the_tags', get_the_term_list( 0, 'post_tag', $before, $sep, $after ) );
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieve the tags for a post.
|
||||
*
|
||||
* @since 2.3.0
|
||||
*
|
||||
* @param string $before Optional. Before list.
|
||||
* @param string $sep Optional. Separate items using this.
|
||||
* @param string $after Optional. After list.
|
||||
* @return string
|
||||
*/
|
||||
function the_tags( $before = 'Tags: ', $sep = ', ', $after = '' ) {
|
||||
return the_terms( 0, 'post_tag', $before, $sep, $after );
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieve the terms of the taxonomy that are attached to the post.
|
||||
*
|
||||
* This function can only be used within the loop.
|
||||
*
|
||||
* @since 2.5.0
|
||||
*
|
||||
* @param int $id Post ID. Is not optional.
|
||||
* @param string $taxonomy Taxonomy name.
|
||||
* @return array|bool False on failure. Array of term objects on success.
|
||||
*/
|
||||
function get_the_terms( $id = 0, $taxonomy ) {
|
||||
global $post;
|
||||
|
||||
|
|
@ -528,6 +812,18 @@ function get_the_terms( $id = 0, $taxonomy ) {
|
|||
return $terms;
|
||||
}
|
||||
|
||||
/**
|
||||
* Retrieve terms as a list with specified format.
|
||||
*
|
||||
* @since 2.5.0
|
||||
*
|
||||
* @param int $id Term ID.
|
||||
* @param string $taxonomy Taxonomy name.
|
||||
* @param string $before Optional. Before list.
|
||||
* @param string $sep Optional. Separate items using this.
|
||||
* @param string $after Optional. After list.
|
||||
* @return string
|
||||
*/
|
||||
function get_the_term_list( $id = 0, $taxonomy, $before = '', $sep = '', $after = '' ) {
|
||||
$terms = get_the_terms( $id, $taxonomy );
|
||||
|
||||
|
|
@ -549,6 +845,18 @@ function get_the_term_list( $id = 0, $taxonomy, $before = '', $sep = '', $after
|
|||
return $before . join( $sep, $term_links ) . $after;
|
||||
}
|
||||
|
||||
/**
|
||||
* Display the terms in a list.
|
||||
*
|
||||
* @since 2.5.0
|
||||
*
|
||||
* @param int $id Term ID.
|
||||
* @param string $taxonomy Taxonomy name.
|
||||
* @param string $before Optional. Before list.
|
||||
* @param string $sep Optional. Separate items using this.
|
||||
* @param string $after Optional. After list.
|
||||
* @return null|bool False on WordPress error. Returns null when displaying.
|
||||
*/
|
||||
function the_terms( $id, $taxonomy, $before = '', $sep = '', $after = '' ) {
|
||||
$return = get_the_term_list( $id, $taxonomy, $before, $sep, $after );
|
||||
if ( is_wp_error( $return ) )
|
||||
|
|
@ -558,15 +866,16 @@ function the_terms( $id, $taxonomy, $before = '', $sep = '', $after = '' ) {
|
|||
}
|
||||
|
||||
/**
|
||||
* Check if the current post has the given tag
|
||||
* Check if the current post has the given tag.
|
||||
*
|
||||
* @package WordPress
|
||||
* @since 2.6
|
||||
* This function is only for use within the WordPress Loop.
|
||||
*
|
||||
* @since 2.6.0
|
||||
*
|
||||
* @uses wp_get_object_terms() Gets the tags.
|
||||
*
|
||||
* @param string|int|array $tag Optional. The tag name/id/slug or array of them to check for
|
||||
* @return bool True if the current post has the given tag, or any tag, if no tag specified
|
||||
* @param string|int|array $tag Optional. The tag name/id/slug or array of them to check for.
|
||||
* @return bool True if the current post has the given tag, or any tag, if no tag specified.
|
||||
*/
|
||||
function has_tag( $tag = '' ) {
|
||||
global $post;
|
||||
|
|
|
|||
Loading…
Reference in New Issue