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phpdoc for feed.php from jacobsantos. fixes #5636
git-svn-id: http://svn.automattic.com/wordpress/trunk@8246 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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ryan
parent
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@ -1,18 +1,83 @@
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<?php
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/**
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* WordPress Feed API
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*
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* Many of the functions used in here belong in The Loop, or The Loop for the
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* Feeds.
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*
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* @package WordPress
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* @subpackage Feed
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*/
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/**
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* RSS container for the bloginfo function.
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*
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* You can retrieve anything that you can using the get_bloginfo() function.
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* Everything will be stripped of tags and characters converted, when the values
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* are retrieved for use in the feeds.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 1.5.1
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* @uses apply_filters() Calls 'get_bloginfo_rss' hook with two parameters.
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* @see get_bloginfo() For the list of possible values to display.
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*
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* @param string $show See get_bloginfo() for possible values.
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* @return string
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*/
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function get_bloginfo_rss($show = '') {
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$info = strip_tags(get_bloginfo($show));
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return apply_filters('get_bloginfo_rss', convert_chars($info), $show);
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}
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/**
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* Display RSS container for the bloginfo function.
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*
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* You can retrieve anything that you can using the get_bloginfo() function.
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* Everything will be stripped of tags and characters converted, when the values
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* are retrieved for use in the feeds.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 0.71
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* @uses apply_filters() Calls 'bloginfo_rss' hook with two parameters.
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* @see get_bloginfo() For the list of possible values to display.
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*
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* @param string $show See get_bloginfo() for possible values.
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*/
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function bloginfo_rss($show = '') {
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echo apply_filters('bloginfo_rss', get_bloginfo_rss($show), $show);
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}
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/**
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* Retrieve the default feed.
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*
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* The default feed is 'rss2', unless a plugin changes it through the
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* 'default_feed' filter.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 2.5
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* @uses apply_filters() Calls 'default_feed' hook on the default feed string.
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*
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* @return string Default feed, or for example 'rss2', 'atom', etc.
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*/
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function get_default_feed() {
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return apply_filters('default_feed', 'rss2');
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}
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/**
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* Retrieve the blog title for the feed title.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 2.2.0
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* @uses apply_filters() Calls 'get_wp_title_rss' hook on title.
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* @uses wp_title() See function for $sep parameter usage.
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*
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* @param string $sep Optional.How to separate the title. See wp_title() for more info.
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* @return string Error message on failure or blog title on success.
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*/
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function get_wp_title_rss($sep = '»') {
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$title = wp_title($sep, false);
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if ( is_wp_error( $title ) )
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@ -21,22 +86,79 @@ function get_wp_title_rss($sep = '»') {
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return $title;
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}
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/**
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* Display the blog title for display of the feed title.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 2.2.0
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* @uses apply_filters() Calls 'wp_title_rss' on the blog title.
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* @see wp_title() $sep parameter usage.
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*
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* @param string $sep Optional.
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*/
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function wp_title_rss($sep = '»') {
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echo apply_filters('wp_title_rss', get_wp_title_rss($sep));
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}
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/**
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* Retrieve the current post title for the feed.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 2.0.0
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* @uses apply_filters() Calls 'the_title_rss' on the post title.
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*
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* @return string Current post title.
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*/
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function get_the_title_rss() {
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$title = get_the_title();
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$title = apply_filters('the_title_rss', $title);
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return $title;
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}
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/**
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* Display the post title in the feed.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 0.71
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* @uses get_the_title_rss() Used to retrieve current post title.
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*/
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function the_title_rss() {
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echo get_the_title_rss();
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}
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/**
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* Display the post content for the feed.
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*
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* For encoding the html or the $encode_html parameter, there are three possible
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* values. '0' will make urls footnotes and use make_url_footnote(). '1' will
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* encode special characters and automatically display all of the content. The
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* value of '2' will strip all HTML tags from the content.
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*
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* Also note that you cannot set the amount of words and not set the html
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* encoding. If that is the case, then the html encoding will default to 2,
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* which will strip all HTML tags.
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*
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* To restrict the amount of words of the content, you can use the cut
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* parameter. If the content is less than the amount, then there won't be any
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* dots added to the end. If there is content left over, then dots will be added
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* and the rest of the content will be removed.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 0.71
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* @uses apply_filters() Calls 'the_content_rss' on the content before processing.
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* @see get_the_content() For the $more_link_text, $stripteaser, and $more_file
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* parameters.
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*
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* @param string $more_link_text Optional. Text to display when more content is available but not displayed.
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* @param int|bool $stripteaser Optional. Default is 0.
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* @param string $more_file Optional.
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* @param int $cut Optional. Amount of words to keep for the content.
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* @param int $encode_html Optional. How to encode the content.
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*/
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function the_content_rss($more_link_text='(more...)', $stripteaser=0, $more_file='', $cut = 0, $encode_html = 0) {
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$content = get_the_content($more_link_text, $stripteaser, $more_file);
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$content = apply_filters('the_content_rss', $content);
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@ -59,6 +181,8 @@ function the_content_rss($more_link_text='(more...)', $stripteaser=0, $more_file
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$k = count($blah);
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$use_dotdotdot = 0;
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}
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/** @todo Check performance, might be faster to use array slice instead. */
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for ( $i=0; $i<$k; $i++ )
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$excerpt .= $blah[$i].' ';
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$excerpt .= ($use_dotdotdot) ? '...' : '';
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@ -68,21 +192,51 @@ function the_content_rss($more_link_text='(more...)', $stripteaser=0, $more_file
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echo $content;
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}
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/**
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* Display the post excerpt for the feed.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 0.71
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* @uses apply_filters() Calls 'the_excerpt_rss' hook on the excerpt.
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*/
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function the_excerpt_rss() {
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$output = get_the_excerpt();
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echo apply_filters('the_excerpt_rss', $output);
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}
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/**
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* Display the permalink to the post for use in feeds.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 2.3.0
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* @uses apply_filters() Call 'the_permalink_rss' on the post permalink
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*/
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function the_permalink_rss() {
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echo apply_filters('the_permalink_rss', get_permalink());
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}
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/**
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* Display the feed GUID for the current comment.
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*
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* @package WordPress
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* @subpackage Feed
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* @since unknown
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*/
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function comment_guid() {
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echo get_comment_guid();
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}
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/**
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* Retrieve the feed GUID for the current comment.
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*
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* @package WordPress
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* @subpackage Feed
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* @since unknown
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*
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* @return bool|string false on failure or guid for comment on success.
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*/
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function get_comment_guid() {
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global $comment;
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@ -92,24 +246,71 @@ function get_comment_guid() {
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return get_the_guid($comment->comment_post_ID) . '#comment-' . $comment->comment_ID;
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}
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/**
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* Display the link to the comments.
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*
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* @since 1.5.0
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*/
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function comment_link() {
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echo get_comment_link();
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}
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/**
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* Retrieve the current comment author for use in the feeds.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 2.0.0
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* @uses apply_filters() Calls 'comment_author_rss' hook on comment author.
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* @uses get_comment_author()
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*
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* @return string Comment Author
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*/
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function get_comment_author_rss() {
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return apply_filters('comment_author_rss', get_comment_author() );
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}
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/**
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* Display the current comment author in the feed.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 1.0.0
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*/
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function comment_author_rss() {
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echo get_comment_author_rss();
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}
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/**
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* Display the current comment content for use in the feeds.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 1.0.0
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* @uses apply_filters() Calls 'comment_text_rss' filter on comment content.
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* @uses get_comment_text()
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*/
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function comment_text_rss() {
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$comment_text = get_comment_text();
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$comment_text = apply_filters('comment_text_rss', $comment_text);
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echo $comment_text;
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}
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/**
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* Retrieve all of the post categories, formatted for use in feeds.
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*
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* All of the categories for the current post in the feed loop, will be
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* retrieved and have feed markup added, so that they can easily be added to the
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* RSS2, Atom, or RSS1 and RSS0.91 RDF feeds.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 2.1.0
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* @uses apply_filters()
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*
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* @param string $type Optional, default is 'rss'. Either 'rss', 'atom', or 'rdf'.
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* @return string All of the post categories for displaying in the feed.
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*/
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function get_the_category_rss($type = 'rss') {
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$categories = get_the_category();
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$tags = get_the_tags();
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@ -142,10 +343,29 @@ function get_the_category_rss($type = 'rss') {
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return apply_filters('the_category_rss', $the_list, $type);
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}
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/**
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* Display the post categories in the feed.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 0.71
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* @see get_the_category_rss() For better explanation.
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*
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* @param string $type Optional, default is 'rss'. Either 'rss', 'atom', or 'rdf'.
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*/
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function the_category_rss($type = 'rss') {
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echo get_the_category_rss($type);
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}
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/**
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* Display the HTML type based on the blog setting.
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*
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* The two possible values are either 'xhtml' or 'html'.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 2.2.0
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*/
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function html_type_rss() {
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$type = get_bloginfo('html_type');
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if (strpos($type, 'xhtml') !== false)
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echo $type;
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}
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/**
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* Display the rss enclosure for the current post.
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*
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* Uses the global $post to check whether the post requires a password and if
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* the user has the password for the post. If not then it will return before
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* displaying.
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*
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* Also uses the function get_post_custom() to get the post's 'enclosure'
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* metadata field and parses the value to display the enclosure(s). The
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* enclosure(s) consist of enclosure HTML tag(s) with a URI and other
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* attributes.
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*
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* @package WordPress
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* @subpackage Template
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* @since 1.5.0
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* @uses apply_filters() Calls 'rss_enclosure' hook on rss enclosure.
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* @uses get_post_custom() To get the current post enclosure metadata.
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*/
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function rss_enclosure() {
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global $post;
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if ( !empty($post->post_password) && (!isset($_COOKIE['wp-postpass_'.COOKIEHASH]) || $_COOKIE['wp-postpass_'.COOKIEHASH] != $post->post_password) )
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@ -171,6 +408,23 @@ function rss_enclosure() {
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}
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}
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/**
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* Display the atom enclosure for the current post.
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*
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* Uses the global $post to check whether the post requires a password and if
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* the user has the password for the post. If not then it will return before
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* displaying.
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*
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* Also uses the function get_post_custom() to get the post's 'enclosure'
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* metadata field and parses the value to display the enclosure(s). The
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* enclosure(s) consist of link HTML tag(s) with a URI and other attributes.
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*
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* @package WordPress
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* @subpackage Template
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* @since 2.2.0
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* @uses apply_filters() Calls 'atom_enclosure' hook on atom enclosure.
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* @uses get_post_custom() To get the current post enclosure metadata.
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*/
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function atom_enclosure() {
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global $post;
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if ( !empty($post->post_password) && ($_COOKIE['wp-postpass_'.COOKIEHASH] != $post->post_password) )
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@ -187,7 +441,7 @@ function atom_enclosure() {
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}
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/**
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* prep_atom_text_construct() - Determine the type of a given string of data
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* Determine the type of a string of data with the data formatted.
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*
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* Tell whether the type is text, html, or xhtml, per RFC 4287 section 3.1.
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*
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* @subpackage Feed
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* @since 2.5
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*
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* @param string $data input string
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* @return array $result array(type, value)
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* @param string $data Input string
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* @return array array(type, value)
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*/
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function prep_atom_text_construct($data) {
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if (strpos($data, '<') === false && strpos($data, '&') === false) {
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@ -232,14 +486,13 @@ function prep_atom_text_construct($data) {
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}
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/**
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* self_link() - Generate a correct link for the atom:self elemet
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* Display the link for the currently displayed feed in a XSS safe way.
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*
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* Echo the link for the currently displayed feed in a XSS safe way.
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* Generate a correct link for the atom:self element.
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*
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* @package WordPress
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* @subpackage Feed
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* @since 2.5
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*
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*/
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function self_link() {
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echo 'http'
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@ -248,4 +501,4 @@ function self_link() {
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. wp_specialchars(stripslashes($_SERVER['REQUEST_URI']), 1);
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}
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?>
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?>
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