<?php
+/**
+ * WordPress Link Template Functions
+ *
+ * @package WordPress
+ * @subpackage Template
+ */
-
+/**
+ * Display the permalink for the current post.
+ *
+ * @since 1.2.0
+ * @uses apply_filters() Calls 'the_permalink' filter on the permalink string.
+ */
function the_permalink() {
echo apply_filters('the_permalink', get_permalink());
}
-
/**
- * Conditionally adds a trailing slash if the permalink structure
- * has a trailing slash, strips the trailing slash if not
- * @global object Uses $wp_rewrite
- * @param $string string a URL with or without a trailing slash
- * @param $type_of_url string the type of URL being considered (e.g. single, category, etc) for use in the filter
+ * 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 a URL with or without a trailing slash.
+ * @param $type_of_url String the type of URL being considered (e.g. single, category, etc) for use in the filter.
* @return string
*/
function user_trailingslashit($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') {
global $post;
switch ( strtolower($mode) ) {
}
}
-
-function get_permalink($id = 0, $leavename=false) {
+/**
+ * Retrieve full permalink for current post or post ID.
+ *
+ * @since 1.0.0
+ *
+ * @param int $id Optional. Post ID.
+ * @param bool $leavename Optional, defaults to false. Whether to keep post name or page name.
+ * @return string
+ */
+function get_permalink($id = 0, $leavename = false) {
$rewritecode = array(
'%year%',
'%monthnum%',
$leavename? '' : '%pagename%',
);
- $post = &get_post($id);
+ 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 ( empty($post->ID) ) return false;
if ( $post->post_type == 'page' )
- return get_page_link($post->ID, $leavename);
+ return get_page_link($post->ID, $leavename, $sample);
elseif ($post->post_type == 'attachment')
return get_attachment_link($post->ID);
$category = '';
if ( strpos($permalink, '%category%') !== false ) {
$cats = get_the_category($post->ID);
- if ( $cats )
+ if ( $cats ) {
usort($cats, '_usort_terms_by_ID'); // order by ID
- $category = $cats[0]->slug;
- if ( $parent=$cats[0]->parent )
- $category = get_category_parents($parent, FALSE, '/', TRUE) . $category;
-
+ $category = $cats[0]->slug;
+ if ( $parent = $cats[0]->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_category( get_option( 'default_category' ) );
- $category = is_wp_error( $default_category ) ? '' : $default_category->slug;
+ $category = is_wp_error( $default_category ) ? '' : $default_category->slug;
}
}
);
$permalink = get_option('home') . str_replace($rewritecode, $rewritereplace, $permalink);
$permalink = user_trailingslashit($permalink, 'single');
- return apply_filters('post_link', $permalink, $post);
+ return apply_filters('post_link', $permalink, $post, $leavename);
} else { // if they're not using the fancy permalink option
- $permalink = get_option('home') . '/?p=' . $post->ID;
- return apply_filters('post_link', $permalink, $post);
+ $permalink = trailingslashit(get_option('home')) . '?p=' . $post->ID;
+ return apply_filters('post_link', $permalink, $post, $leavename);
}
}
-// get permalink from post ID
+/**
+ * Retrieve permalink from post ID.
+ *
+ * @since 1.0.0
+ *
+ * @param int $post_id Optional. Post ID.
+ * @param mixed $deprecated Not used.
+ * @return string
+ */
function post_permalink($post_id = 0, $deprecated = '') {
return get_permalink($post_id);
}
-// Respects page_on_front. Use this one.
-function get_page_link($id = false, $leavename = false) {
+/**
+ * Retrieve the permalink for current page or page ID.
+ *
+ * Respects page_on_front. Use this one.
+ *
+ * @since 1.5.0
+ *
+ * @param int $id Optional. Post ID.
+ * @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
+ */
+function get_page_link( $id = false, $leavename = false, $sample = false ) {
global $post;
$id = (int) $id;
if ( 'page' == get_option('show_on_front') && $id == get_option('page_on_front') )
$link = get_option('home');
else
- $link = _get_page_link( $id , $leavename );
+ $link = _get_page_link( $id , $leavename, $sample );
return apply_filters('page_link', $link, $id);
}
-// Ignores page_on_front. Internal use only.
-function _get_page_link( $id = false, $leavename = false ) {
+/**
+ * Retrieve the page permalink.
+ *
+ * Ignores page_on_front. Internal use only.
+ *
+ * @since 2.1.0
+ * @access private
+ *
+ * @param int $id Optional. Post ID.
+ * @param bool $leavename Optional. Leave name.
+ * @param bool $sample Optional. Sample permalink.
+ * @return string
+ */
+function _get_page_link( $id = false, $leavename = false, $sample = false ) {
global $post, $wp_rewrite;
if ( !$id )
$pagestruct = $wp_rewrite->get_page_permastruct();
- if ( '' != $pagestruct && isset($post->post_status) && 'draft' != $post->post_status ) {
+ if ( '' != $pagestruct && ( ( isset($post->post_status) && 'draft' != $post->post_status ) || $sample ) ) {
$link = get_page_uri($id);
$link = ( $leavename ) ? $pagestruct : str_replace('%pagename%', $link, $pagestruct);
- $link = get_option('home') . "/$link";
+ $link = trailingslashit(get_option('home')) . "$link";
$link = user_trailingslashit($link, 'page');
} else {
- $link = get_option('home') . "/?page_id=$id";
+ $link = trailingslashit(get_option('home')) . "?page_id=$id";
}
return apply_filters( '_get_page_link', $link, $id );
}
+/**
+ * Retrieve permalink for attachment.
+ *
+ * This can be used in the WordPress Loop or outside of it.
+ *
+ * @since 2.0.0
+ *
+ * @param int $id Optional. Post ID.
+ * @return string
+ */
function get_attachment_link($id = false) {
global $post, $wp_rewrite;
else
$name = $object->post_name;
if (strpos($parentlink, '?') === false)
- $link = trailingslashit($parentlink) . $name . '/';
+ $link = user_trailingslashit( trailingslashit($parentlink) . $name );
}
if (! $link ) {
- $link = get_bloginfo('url') . "/?attachment_id=$id";
+ $link = trailingslashit(get_bloginfo('url')) . "?attachment_id=$id";
}
return apply_filters('attachment_link', $link, $id);
}
+/**
+ * Retrieve the permalink for the year archives.
+ *
+ * @since 1.5.0
+ *
+ * @param int|bool $year False for current year or year for permalink.
+ * @return string
+ */
function get_year_link($year) {
global $wp_rewrite;
if ( !$year )
$yearlink = str_replace('%year%', $year, $yearlink);
return apply_filters('year_link', get_option('home') . user_trailingslashit($yearlink, 'year'), $year);
} else {
- return apply_filters('year_link', get_option('home') . '/?m=' . $year, $year);
+ return apply_filters('year_link', trailingslashit(get_option('home')) . '?m=' . $year, $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 $month False for current month. Integer of month.
+ * @return string
+ */
function get_month_link($year, $month) {
global $wp_rewrite;
if ( !$year )
$monthlink = str_replace('%monthnum%', zeroise(intval($month), 2), $monthlink);
return apply_filters('month_link', get_option('home') . user_trailingslashit($monthlink, 'month'), $year, $month);
} else {
- return apply_filters('month_link', get_option('home') . '/?m=' . $year . zeroise($month, 2), $year, $month);
+ return apply_filters('month_link', trailingslashit(get_option('home')) . '?m=' . $year . zeroise($month, 2), $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 $day False for current day. Integer of day.
+ * @return string
+ */
function get_day_link($year, $month, $day) {
global $wp_rewrite;
if ( !$year )
$daylink = str_replace('%day%', zeroise(intval($day), 2), $daylink);
return apply_filters('day_link', get_option('home') . user_trailingslashit($daylink, 'day'), $year, $month, $day);
} else {
- return apply_filters('day_link', get_option('home') . '/?m=' . $year . zeroise($month, 2) . zeroise($day, 2), $year, $month, $day);
+ return apply_filters('day_link', trailingslashit(get_option('home')) . '?m=' . $year . zeroise($month, 2) . zeroise($day, 2), $year, $month, $day);
}
}
+/**
+ * Retrieve the permalink for the feed type.
+ *
+ * @since 1.5.0
+ *
+ * @param string $feed Optional, defaults to default feed. Feed type.
+ * @return string
+ */
function get_feed_link($feed = '') {
global $wp_rewrite;
if ( false !== strpos($feed, 'comments_') )
$feed = str_replace('comments_', 'comments-', $feed);
- $output = get_option('home') . "/?feed={$feed}";
+ $output = trailingslashit(get_option('home')) . "?feed={$feed}";
}
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 $feed Optional. Feed type.
+ * @return string
+ */
function get_post_comments_feed_link($post_id = '', $feed = '') {
global $id;
} else {
$type = get_post_field('post_type', $post_id);
if ( 'page' == $type )
- $url = get_option('home') . "/?feed=$feed&page_id=$post_id";
+ $url = trailingslashit(get_option('home')) . "?feed=$feed&page_id=$post_id";
else
- $url = get_option('home') . "/?feed=$feed&p=$post_id";
+ $url = trailingslashit(get_option('home')) . "?feed=$feed&p=$post_id";
}
return apply_filters('post_comments_feed_link', $url);
}
-/** post_comments_feed_link() - Output the comment feed link for a post.
+/**
+ * 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.
+ * 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.
*
* @package WordPress
* @subpackage Feed
- * @since 2.5
+ * @since 2.5.0
*
- * @param string Descriptive text
- * @param int Optional post ID. Default to current post.
- * @return string Link to the comment feed for the current post
+ * @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 = '' ) {
$url = get_post_comments_feed_link($post_id, $feed);
if ( empty($link_text) )
$link_text = __('Comments Feed');
- echo "<a href='$url'>$link_text</a>";
+ echo apply_filters( 'post_comments_feed_link_html', "<a href='$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.
+ *
+ * @package WordPress
+ * @subpackage 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');
$feed = get_default_feed();
if ( '' == $permalink_structure ) {
- $link = get_option('home') . '?feed=rss2&author=' . $author_id;
+ $link = trailingslashit(get_option('home')) . "?feed=$feed&author=" . $author_id;
} else {
$link = get_author_posts_url($author_id);
- $link = trailingslashit($link) . user_trailingslashit('feed', 'feed');
+ if ( $feed == get_default_feed() )
+ $feed_link = 'feed';
+ else
+ $feed_link = "feed/$feed";
+
+ $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
}
- $link = apply_filters('author_feed_link', $link);
+ $link = apply_filters('author_feed_link', $link, $feed);
return $link;
}
-/** get_category_feed_link() - Get the feed link for a given category
+/**
+ * Retrieve the feed link for a category.
*
- * Returns a link to the feed for all post in a given category. A specific feed can be requested
- * or left blank to get the default feed.
+ * Returns a link to the feed for all post in a given category. A specific feed
+ * can be requested or left blank to get the default feed.
*
* @package WordPress
* @subpackage Feed
- * @since 2.5
+ * @since 2.5.0
*
- * @param int $cat_id ID of a category
- * @param string $feed Feed type
- * @return string Link to the feed for the category specified by $cat_id
+ * @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 = '') {
$cat_id = (int) $cat_id;
$permalink_structure = get_option('permalink_structure');
if ( '' == $permalink_structure ) {
- $link = get_option('home') . "?feed=$feed&cat=" . $cat_id;
+ $link = trailingslashit(get_option('home')) . "?feed=$feed&cat=" . $cat_id;
} else {
$link = get_category_link($cat_id);
if( $feed == get_default_feed() )
return $link;
}
+/**
+ * Retrieve permalink for feed of tag.
+ *
+ * @since 2.3.0
+ *
+ * @param int $tag_id Tag ID.
+ * @param string $feed Optional. Feed type.
+ * @return string
+ */
function get_tag_feed_link($tag_id, $feed = '') {
$tag_id = (int) $tag_id;
$feed = get_default_feed();
if ( '' == $permalink_structure ) {
- $link = get_option('home') . "?feed=$feed&tag=" . $tag->slug;
+ $link = trailingslashit(get_option('home')) . "?feed=$feed&tag=" . $tag->slug;
} else {
$link = get_tag_link($tag->term_id);
if ( $feed == get_default_feed() )
$feed_link = 'feed';
else
$feed_link = "feed/$feed";
- $link = $link . user_trailingslashit($feed_link, 'feed');
+ $link = trailingslashit($link) . user_trailingslashit($feed_link, 'feed');
}
$link = apply_filters('tag_feed_link', $link, $feed);
return $link;
}
+/**
+ * Retrieve edit tag link.
+ *
+ * @since 2.7.0
+ *
+ * @param int $tag_id Tag ID
+ * @return string
+ */
+function get_edit_tag_link( $tag_id = 0, $taxonomy = 'post_tag' ) {
+ $tag = get_term($tag_id, $taxonomy);
+
+ if ( !current_user_can('manage_categories') )
+ return;
+
+ $location = admin_url('edit-tags.php?action=edit&taxonomy=' . $taxonomy . '&tag_ID=' . $tag->term_id);
+ return apply_filters( 'get_edit_tag_link', $location );
+}
+
+/**
+ * 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 int|object $tag Tag object or ID
+ * @return string|null HTML content, if $echo is set to false.
+ */
+function edit_tag_link( $link = '', $before = '', $after = '', $tag = null ) {
+ $tag = get_term($tag, 'post_tag');
+
+ if ( !current_user_can('manage_categories') )
+ return;
+
+ if ( empty($link) )
+ $link = __('Edit This');
+
+ $link = '<a href="' . get_edit_tag_link( $tag->term_id ) . '" title="' . __( 'Edit tag' ) . '">' . $link . '</a>';
+ echo $before . apply_filters( 'edit_tag_link', $link, $tag->term_id ) . $after;
+}
+
+/**
+ * Retrieve the permalink for the feed of the search results.
+ *
+ * @since 2.5.0
+ *
+ * @param string $search_query Optional. Search query.
+ * @param string $feed Optional. Feed type.
+ * @return string
+ */
function get_search_feed_link($search_query = '', $feed = '') {
if ( empty($search_query) )
- $search = attribute_escape(get_search_query());
+ $search = esc_attr(get_search_query());
else
- $search = attribute_escape(stripslashes($search_query));
+ $search = esc_attr(stripslashes($search_query));
if ( empty($feed) )
$feed = get_default_feed();
- $link = get_option('home') . "?s=$search&feed=$feed";
+ $link = trailingslashit(get_option('home')) . "?s=$search&feed=$feed";
$link = apply_filters('search_feed_link', $link);
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 $feed Optional. Feed type.
+ * @return string
+ */
function get_search_comments_feed_link($search_query = '', $feed = '') {
if ( empty($search_query) )
- $search = attribute_escape(get_search_query());
+ $search = esc_attr(get_search_query());
else
- $search = attribute_escape(stripslashes($search_query));
+ $search = esc_attr(stripslashes($search_query));
if ( empty($feed) )
$feed = get_default_feed();
- $link = get_option('home') . "?s=$search&feed=comments-$feed";
+ $link = trailingslashit(get_option('home')) . "?s=$search&feed=comments-$feed";
$link = apply_filters('search_feed_link', $link);
return $link;
}
-function get_edit_post_link( $id = 0 ) {
+/**
+ * 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, default to display. How to write the '&', defaults to '&'.
+ * @return string
+ */
+function get_edit_post_link( $id = 0, $context = 'display' ) {
if ( !$post = &get_post( $id ) )
return;
+ if ( 'display' == $context )
+ $action = 'action=edit&';
+ else
+ $action = 'action=edit&';
+
switch ( $post->post_type ) :
case 'page' :
if ( !current_user_can( 'edit_page', $post->ID ) )
$file = 'media';
$var = 'attachment_id';
break;
+ case 'revision' :
+ if ( !current_user_can( 'edit_post', $post->ID ) )
+ return;
+ $file = 'revision';
+ $var = 'revision';
+ $action = '';
+ break;
default :
if ( !current_user_can( 'edit_post', $post->ID ) )
return;
$var = 'post';
break;
endswitch;
-
- return apply_filters( 'get_edit_post_link', get_bloginfo( 'wpurl' ) . "/wp-admin/$file.php?action=edit&$var=$post->ID", $post->ID );
+
+ return apply_filters( 'get_edit_post_link', admin_url("$file.php?{$action}$var=$post->ID"), $post->ID, $context );
}
-function edit_post_link( $link = 'Edit This', $before = '', $after = '' ) {
- global $post;
+/**
+ * Display edit post link for post.
+ *
+ * @since 1.0.0
+ *
+ * @param string $link Optional. Anchor text.
+ * @param string $before Optional. Display before edit link.
+ * @param string $after Optional. Display after edit link.
+ * @param int $id Optional. Post ID.
+ */
+function edit_post_link( $link = 'Edit This', $before = '', $after = '', $id = 0 ) {
+ if ( !$post = &get_post( $id ) )
+ return;
- if ( $post->post_type == 'page' ) {
- if ( !current_user_can( 'edit_page', $post->ID ) )
- return;
- } else {
- if ( !current_user_can( 'edit_post', $post->ID ) )
- return;
- }
+ if ( !$url = get_edit_post_link( $post->ID ) )
+ return;
- $link = '<a href="' . get_edit_post_link( $post->ID ) . '" title="' . __( 'Edit post' ) . '">' . $link . '</a>';
+ $link = '<a class="post-edit-link" href="' . $url . '" title="' . esc_attr( __( 'Edit post' ) ) . '">' . $link . '</a>';
echo $before . apply_filters( 'edit_post_link', $link, $post->ID ) . $after;
}
+/**
+ * Retrieve edit comment link.
+ *
+ * @since 2.3.0
+ *
+ * @param int $comment_id Optional. Comment ID.
+ * @return string
+ */
function get_edit_comment_link( $comment_id = 0 ) {
$comment = &get_comment( $comment_id );
$post = &get_post( $comment->comment_post_ID );
return;
}
- $location = get_bloginfo( 'wpurl' ) . '/wp-admin/comment.php?action=editcomment&c=' . $comment->comment_ID;
+ $location = admin_url('comment.php?action=editcomment&c=') . $comment->comment_ID;
return apply_filters( 'get_edit_comment_link', $location );
}
+/**
+ * Display or retrieve edit comment link with formatting.
+ *
+ * @since 1.0.0
+ *
+ * @param string $link Optional. Anchor text.
+ * @param string $before Optional. Display before edit link.
+ * @param string $after Optional. Display after edit link.
+ * @return string|null HTML content, if $echo is set to false.
+ */
function edit_comment_link( $link = 'Edit This', $before = '', $after = '' ) {
global $comment, $post;
- if ( $post->post_type == 'attachment' ) {
- } elseif ( $post->post_type == 'page' ) {
+ if ( $post->post_type == 'page' ) {
if ( !current_user_can( 'edit_page', $post->ID ) )
return;
} else {
return;
}
- $link = '<a href="' . get_edit_comment_link( $comment->comment_ID ) . '" title="' . __( 'Edit comment' ) . '">' . $link . '</a>';
+ $link = '<a class="comment-edit-link" href="' . get_edit_comment_link( $comment->comment_ID ) . '" title="' . __( 'Edit comment' ) . '">' . $link . '</a>';
echo $before . apply_filters( 'edit_comment_link', $link, $comment->comment_ID ) . $after;
}
+/**
+ * Display edit bookmark (literally a URL external to blog) link.
+ *
+ * @since 2.7.0
+ *
+ * @param int $link Optional. Bookmark ID.
+ * @return string
+ */
+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&link_id=') . $link->link_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( $link ) . '" title="' . __( 'Edit link' ) . '">' . $link . '</a>';
+ echo $before . apply_filters( 'edit_bookmark_link', $link, $bookmark->link_id ) . $after;
+}
+
// Navigation links
+/**
+ * Retrieve previous post link that is adjacent to current post.
+ *
+ * @since 1.5.0
+ *
+ * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ * @return string
+ */
function get_previous_post($in_same_cat = false, $excluded_categories = '') {
return get_adjacent_post($in_same_cat, $excluded_categories);
}
+/**
+ * Retrieve next post link that is adjacent to current post.
+ *
+ * @since 1.5.0
+ *
+ * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ * @return string
+ */
function get_next_post($in_same_cat = false, $excluded_categories = '') {
return get_adjacent_post($in_same_cat, $excluded_categories, false);
}
+/**
+ * Retrieve adjacent post link.
+ *
+ * Can either be next or previous post link.
+ *
+ * @since 2.5.0
+ *
+ * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ * @param bool $previous Optional. Whether to retrieve previous post.
+ * @return string
+ */
function get_adjacent_post($in_same_cat = false, $excluded_categories = '', $previous = true) {
global $post, $wpdb;
- if( empty($post) || !is_single() || is_attachment() )
+ if ( empty($post) || !is_single() || is_attachment() )
return null;
$current_post_date = $post->post_date;
if ( $in_same_cat ) {
$cat_array = wp_get_object_terms($post->ID, 'category', 'fields=ids');
- $join .= " AND tt.taxonomy = 'category' AND tt.term_id IN (" . implode($cat_array, ',') . ')';
+ $join .= " AND tt.taxonomy = 'category' AND tt.term_id IN (" . implode(',', $cat_array) . ")";
}
$posts_in_ex_cats_sql = "AND tt.taxonomy = 'category'";
$where = apply_filters( "get_{$adjacent}_post_where", $wpdb->prepare("WHERE p.post_date $op %s AND p.post_type = 'post' AND p.post_status = 'publish' $posts_in_ex_cats_sql", $current_post_date), $in_same_cat, $excluded_categories );
$sort = apply_filters( "get_{$adjacent}_post_sort", "ORDER BY p.post_date $order LIMIT 1" );
- return $wpdb->get_row("SELECT p.* FROM $wpdb->posts AS p $join $where $sort");
-}
+ $query = "SELECT p.* FROM $wpdb->posts AS p $join $where $sort";
+ $query_key = 'adjacent_post_' . md5($query);
+ $result = wp_cache_get($query_key, 'counts');
+ if ( false !== $result )
+ return $result;
-function previous_post_link($format='« %link', $link='%title', $in_same_cat = false, $excluded_categories = '') {
- adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, true);
-}
+ $result = $wpdb->get_row("SELECT p.* FROM $wpdb->posts AS p $join $where $sort");
+ if ( null === $result )
+ $result = '';
-function next_post_link($format='%link »', $link='%title', $in_same_cat = false, $excluded_categories = '') {
- adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, false);
+ wp_cache_set($query_key, $result, 'counts');
+ return $result;
}
-function adjacent_post_link($format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true) {
+/**
+ * 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_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ * @param bool $previous Optional, default is true. Whether display link to previous post.
+ * @return string
+ */
+function get_adjacent_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $previous = true) {
if ( $previous && is_attachment() )
$post = & get_post($GLOBALS['post']->post_parent);
else
- $post = get_adjacent_post($in_same_cat, $excluded_categories, $previous);
+ $post = get_adjacent_post($in_same_cat,$excluded_categories,$previous);
- if ( !$post )
+ if ( empty($post) )
return;
- $title = $post->post_title;
-
if ( empty($post->post_title) )
- $title = $previous ? __('Previous Post') : __('Next Post');
+ $post->post_title = $previous ? __('Previous Post') : __('Next Post');
+ $date = mysql2date(get_option('date_format'), $post->post_date);
+
+ $title = str_replace('%title', $post->post_title, $title);
+ $title = str_replace('%date', $date, $title);
$title = apply_filters('the_title', $title, $post);
- $string = '<a href="'.get_permalink($post).'">';
- $link = str_replace('%title', $title, $link);
- $link = $string . $link . '</a>';
- $format = str_replace('%link', $link, $format);
+ $link = $previous ? "<link rel='prev' title='" : "<link rel='next' title='";
+ $link .= esc_attr( $title );
+ $link .= "' href='" . get_permalink($post) . "' />\n";
- echo $format;
+ $adjacent = $previous ? 'previous' : 'next';
+ return apply_filters( "{$adjacent}_post_rel_link", $link );
}
-function get_pagenum_link($pagenum = 1) {
- global $wp_rewrite;
+/**
+ * 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_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ */
+function adjacent_posts_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
+ echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', true);
+ echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', false);
+}
- $pagenum = (int) $pagenum;
+/**
+ * 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_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ */
+function next_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
+ echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', false);
+}
- $request = remove_query_arg( 'paged' );
+/**
+ * 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_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ */
+function prev_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
+ echo get_adjacent_post_rel_link($title, $in_same_cat, $excluded_categories = '', true);
+}
- $home_root = parse_url(get_option('home'));
- $home_root = ( isset($home_root['path']) ) ? $home_root['path'] : '';
- $home_root = preg_quote( trailingslashit( $home_root ), '|' );
+/**
+ * Retrieve boundary post.
+ *
+ * Boundary being either the first or last post by publish date within the contraitns specified
+ * by in same category or excluded categories.
+ *
+ * @since 2.8.0
+ *
+ * @param bool $in_same_cat Optional. Whether returned post should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ * @param bool $previous Optional. Whether to retrieve first post.
+ * @return object
+ */
+function get_boundary_post($in_same_cat = false, $excluded_categories = '', $start = true) {
+ global $post, $wpdb;
- $request = preg_replace('|^'. $home_root . '|', '', $request);
- $request = preg_replace('|^/+|', '', $request);
+ if ( empty($post) || !is_single() || is_attachment() )
+ return null;
+
+ $cat_array = array();
+ $excluded_categories = array();
+ if ( !empty($in_same_cat) || !empty($excluded_categories) ) {
+ if ( !empty($in_same_cat) ) {
+ $cat_array = wp_get_object_terms($post->ID, 'category', 'fields=ids');
+ }
+
+ if ( !empty($excluded_categories) ) {
+ $excluded_categories = array_map('intval', explode(',', $excluded_categories));
+
+ if ( !empty($cat_array) )
+ $excluded_categories = array_diff($excluded_categories, $cat_array);
+
+ $inverse_cats = array();
+ foreach ( $excluded_categories as $excluded_category)
+ $inverse_cats[] = $excluded_category * -1;
+ $excluded_categories = $inverse_cats;
+ }
+ }
+
+ $categories = implode(',', array_merge($cat_array, $excluded_categories) );
+
+ $order = $start ? 'ASC' : 'DESC';
+
+ return get_posts( array('numberposts' => 1, 'order' => $order, 'orderby' => 'ID', 'category' => $categories) );
+}
+
+/**
+ * Get boundary post relational link.
+ *
+ * Can either be start or end post relational link.
+ *
+ * @since 2.8.0
+ *
+ * @param string $title Optional. Link title format.
+ * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ * @param bool $start Optional, default is true. Whether display link to first post.
+ * @return string
+ */
+function get_boundary_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '', $start = true) {
+ $posts = get_boundary_post($in_same_cat,$excluded_categories,$start);
+ // Even though we limited get_posts to return only 1 item it still returns an array of objects.
+ $post = $posts[0];
+
+ if ( empty($post) )
+ return;
+
+ if ( empty($post->post_title) )
+ $post->post_title = $start ? __('First Post') : __('Last Post');
+
+ $date = mysql2date(get_option('date_format'), $post->post_date);
+
+ $title = str_replace('%title', $post->post_title, $title);
+ $title = str_replace('%date', $date, $title);
+ $title = apply_filters('the_title', $title, $post);
+
+ $link = $start ? "<link rel='start' title='" : "<link rel='end' title='";
+ $link .= esc_attr($title);
+ $link .= "' href='" . get_permalink($post) . "' />\n";
+
+ $boundary = $start ? 'start' : 'end';
+ return apply_filters( "{$boundary}_post_rel_link", $link );
+}
+
+/**
+ * Display relational link for the first post.
+ *
+ * @since 2.8.0
+ *
+ * @param string $title Optional. Link title format.
+ * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ */
+function start_post_rel_link($title = '%title', $in_same_cat = false, $excluded_categories = '') {
+ echo get_boundary_post_rel_link($title, $in_same_cat, $excluded_categories, true);
+}
+
+/**
+ * Get site index relational link.
+ *
+ * @since 2.8.0
+ *
+ * @return string
+ */
+function get_index_rel_link() {
+ $link = "<link rel='index' title='" . esc_attr(get_bloginfo('name')) . "' href='" . get_bloginfo('siteurl') . "' />\n";
+ return apply_filters( "index_rel_link", $link );
+}
+
+/**
+ * Display relational link for the site index.
+ *
+ * @since 2.8.0
+ */
+function index_rel_link() {
+ echo get_index_rel_link();
+}
+
+/**
+ * Get parent post relational link.
+ *
+ * @since 2.8.0
+ *
+ * @param string $title Optional. Link title format.
+ * @return string
+ */
+function get_parent_post_rel_link($title = '%title') {
+ if ( ! empty( $GLOBALS['post'] ) && ! empty( $GLOBALS['post']->post_parent ) )
+ $post = & get_post($GLOBALS['post']->post_parent);
+
+ if ( empty($post) )
+ return;
+
+ $date = mysql2date(get_option('date_format'), $post->post_date);
+
+ $title = str_replace('%title', $post->post_title, $title);
+ $title = str_replace('%date', $date, $title);
+ $title = apply_filters('the_title', $title, $post);
+
+ $link = "<link rel='up' title='";
+ $link .= esc_attr( $title );
+ $link .= "' href='" . get_permalink($post) . "' />\n";
+
+ return apply_filters( "parent_post_rel_link", $link );
+}
+
+/**
+ * Display relational link for parent item
+ *
+ * @since 2.8.0
+ */
+function parent_post_rel_link($title = '%title') {
+ echo get_parent_post_rel_link($title);
+}
+
+/**
+ * Display previous post link that is adjacent to the current post.
+ *
+ * @since 1.5.0
+ *
+ * @param string $format Optional. Link anchor format.
+ * @param string $link Optional. Link permalink format.
+ * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ */
+function previous_post_link($format='« %link', $link='%title', $in_same_cat = false, $excluded_categories = '') {
+ adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, true);
+}
+
+/**
+ * Display next post link that is adjacent to the current post.
+ *
+ * @since 1.5.0
+ *
+ * @param string $format Optional. Link anchor format.
+ * @param string $link Optional. Link permalink format.
+ * @param bool $in_same_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ */
+function next_post_link($format='%link »', $link='%title', $in_same_cat = false, $excluded_categories = '') {
+ adjacent_post_link($format, $link, $in_same_cat, $excluded_categories, false);
+}
+
+/**
+ * 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_cat Optional. Whether link should be in same category.
+ * @param string $excluded_categories Optional. Excluded categories IDs.
+ * @param bool $previous Optional, default is true. Whether display link to previous post.
+ */
+function adjacent_post_link($format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true) {
+ if ( $previous && is_attachment() )
+ $post = & get_post($GLOBALS['post']->post_parent);
+ else
+ $post = get_adjacent_post($in_same_cat, $excluded_categories, $previous);
+
+ if ( !$post )
+ return;
+
+ $title = $post->post_title;
+
+ if ( empty($post->post_title) )
+ $title = $previous ? __('Previous Post') : __('Next Post');
+
+ $title = apply_filters('the_title', $title, $post);
+ $date = mysql2date(get_option('date_format'), $post->post_date);
+
+ $string = '<a href="'.get_permalink($post).'">';
+ $link = str_replace('%title', $title, $link);
+ $link = str_replace('%date', $date, $link);
+ $link = $string . $link . '</a>';
+
+ $format = str_replace('%link', $link, $format);
+
+ $adjacent = $previous ? 'previous' : 'next';
+ echo apply_filters( "{$adjacent}_post_link", $format, $link );
+}
+
+/**
+ * Retrieve get links for page numbers.
+ *
+ * @since 1.5.0
+ *
+ * @param int $pagenum Optional. Page ID.
+ * @return string
+ */
+function get_pagenum_link($pagenum = 1) {
+ global $wp_rewrite;
+
+ $pagenum = (int) $pagenum;
+
+ $request = remove_query_arg( 'paged' );
+
+ $home_root = parse_url(get_option('home'));
+ $home_root = ( isset($home_root['path']) ) ? $home_root['path'] : '';
+ $home_root = preg_quote( trailingslashit( $home_root ), '|' );
+
+ $request = preg_replace('|^'. $home_root . '|', '', $request);
+ $request = preg_replace('|^/+|', '', $request);
if ( !$wp_rewrite->using_permalinks() || is_admin() ) {
$base = trailingslashit( get_bloginfo( 'home' ) );
return $result;
}
+/**
+ * Retrieve next posts pages link.
+ *
+ * Backported from 2.1.3 to 2.0.10.
+ *
+ * @since 2.0.10
+ *
+ * @param int $max_page Optional. Max pages.
+ * @return string
+ */
function get_next_posts_page_link($max_page = 0) {
global $paged;
}
}
-function next_posts($max_page = 0) {
- echo clean_url(get_next_posts_page_link($max_page));
+/**
+ * Display or return the next posts pages link.
+ *
+ * @since 0.71
+ *
+ * @param int $max_page Optional. Max pages.
+ * @param boolean $echo Optional. Echo or return;
+ */
+function next_posts( $max_page = 0, $echo = true ) {
+ $output = esc_url( get_next_posts_page_link( $max_page ) );
+
+ if ( $echo )
+ echo $output;
+ else
+ return $output;
}
-function next_posts_link($label='Next Page »', $max_page=0) {
+/**
+ * Return the next posts pages link.
+ *
+ * @since 2.7.0
+ *
+ * @param string $label Content for link text.
+ * @param int $max_page Optional. Max pages.
+ * @return string|null
+ */
+function get_next_posts_link( $label = 'Next Page »', $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 ( (! is_single()) && (empty($paged) || $nextpage <= $max_page) ) {
- echo '<a href="';
- next_posts($max_page);
- echo '">'. preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $label) .'</a>';
+
+ if ( !is_single() && ( empty($paged) || $nextpage <= $max_page) ) {
+ $attr = apply_filters( 'next_posts_link_attributes', '' );
+ return '<a href="' . next_posts( $max_page, false ) . "\" $attr>". preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $label) .'</a>';
}
}
+/**
+ * Display the next posts pages link.
+ *
+ * @since 0.71
+ * @uses get_next_posts_link()
+ *
+ * @param string $label Content for link text.
+ * @param int $max_page Optional. Max pages.
+ */
+function next_posts_link( $label = 'Next Page »', $max_page = 0 ) {
+ echo get_next_posts_link( $label, $max_page );
+}
+
+/**
+ * Retrieve previous post pages 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
+ */
function get_previous_posts_page_link() {
global $paged;
}
}
-function previous_posts() {
- echo clean_url(get_previous_posts_page_link());
+/**
+ * Display or return the previous posts pages link.
+ *
+ * @since 0.71
+ *
+ * @param boolean $echo Optional. Echo or return;
+ */
+function previous_posts( $echo = true ) {
+ $output = esc_url( get_previous_posts_page_link() );
+
+ if ( $echo )
+ echo $output;
+ else
+ return $output;
}
-function previous_posts_link($label='« Previous Page') {
+/**
+ * Return the previous posts pages link.
+ *
+ * @since 2.7.0
+ *
+ * @param string $label Optional. Previous page link text.
+ * @return string|null
+ */
+function get_previous_posts_link( $label = '« Previous Page' ) {
global $paged;
- if ( (!is_single()) && ($paged > 1) ) {
- echo '<a href="';
- previous_posts();
- echo '">'. preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $label) .'</a>';
+
+ if ( !is_single() && $paged > 1 ) {
+ $attr = apply_filters( 'previous_posts_link_attributes', '' );
+ return '<a href="' . previous_posts( false ) . "\" $attr>". preg_replace( '/&([^#])(?![a-z]{1,8};)/', '&$1', $label ) .'</a>';
}
}
-function posts_nav_link($sep=' — ', $prelabel='« Previous Page', $nxtlabel='Next Page »') {
+/**
+ * Display the previous posts page link.
+ *
+ * @since 0.71
+ * @uses get_previous_posts_link()
+ *
+ * @param string $label Optional. Previous page link text.
+ */
+function previous_posts_link( $label = '« Previous Page' ) {
+ echo get_previous_posts_link( $label );
+}
+
+/**
+ * Return post pages link navigation for previous and next pages.
+ *
+ * @since 2.8
+ *
+ * @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' => ' — ',
+ 'prelabel' => __('« Previous Page'),
+ 'nxtlabel' => __('Next Page »'),
+ );
+ $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) {
- $sep = '';
+ $args['sep'] = '';
}
if ( $max_num_pages > 1 ) {
- previous_posts_link($prelabel);
- echo preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $sep);
- next_posts_link($nxtlabel);
+ $return = get_previous_posts_link($args['prelabel']);
+ $return .= preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$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);
+}
+
+/**
+ * Retrieve page numbers links.
+ *
+ * @since 2.7.0
+ *
+ * @param int $pagenum Optional. Page number.
+ * @return string
+ */
+function get_comments_pagenum_link( $pagenum = 1, $max_page = 0 ) {
+ global $post, $wp_rewrite;
+
+ $pagenum = (int) $pagenum;
+
+ $result = get_permalink( $post->ID );
+
+ 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';
+
+ $result = apply_filters('get_comments_pagenum_link', $result);
+
+ return $result;
+}
+
+/**
+ * Return the link to next comments pages.
+ *
+ * @since 2.7.1
+ *
+ * @param string $label Optional. Label for link text.
+ * @param int $max_page Optional. Max page.
+ * @return string|null
+ */
+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 »');
+
+ return '<a href="' . esc_url( get_comments_pagenum_link( $nextpage, $max_page ) ) . '" ' . apply_filters( 'next_comments_link_attributes', '' ) . '>'. preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$1', $label) .'</a>';
+}
+
+/**
+ * Display the link to next comments pages.
+ *
+ * @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
+ */
+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 = __('« Older Comments');
+
+ return '<a href="' . esc_url( get_comments_pagenum_link( $prevpage ) ) . '" ' . apply_filters( 'previous_comments_link_attributes', '' ) . '>' . preg_replace('/&([^#])(?![a-z]{1,8};)/', '&$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_query, $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 shortcut link.
+ *
+ * Use this in 'a' element 'href' attribute.
+ *
+ * @since 2.6.0
+ *
+ * @return string
+ */
+function get_shortcut_link() {
+ $link = "javascript:
+ var d=document,
+ w=window,
+ e=w.getSelection,
+ k=d.getSelection,
+ x=d.selection,
+ s=(e?e():(k)?k():(x?x.createRange().text:0)),
+ f='" . admin_url('press-this.php') . "',
+ l=d.location,
+ e=encodeURIComponent,
+ g=f+'?u='+e(l.href)+'&t='+e(d.title)+'&s='+e(s)+'&v=2';
+ function a(){
+ if(!w.open(g,'t','toolbar=0,resizable=0,scrollbars=1,status=1,width=720,height=570')){
+ l.href=g;
+ }
+ }";
+ if (strpos($_SERVER['HTTP_USER_AGENT'], 'Firefox') !== false)
+ $link .= 'setTimeout(a,0);';
+ else
+ $link .= 'a();';
+
+ $link .= "void(0);";
+
+ $link = str_replace(array("\r", "\n", "\t"), '', $link);
+
+ return apply_filters('shortcut_link', $link);
+}
+
+/**
+ * Retrieve the site url.
+ *
+ * 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.
+ *
+ * @package WordPress
+ * @since 2.6.0
+ *
+ * @param string $path Optional. Path relative to the site url.
+ * @param string $scheme Optional. Scheme to give the site url context. Currently 'http','https', 'login', 'login_post', or 'admin'.
+ * @return string Site url link with optional path appended.
+*/
+function site_url($path = '', $scheme = null) {
+ // should the list of allowed schemes be maintained elsewhere?
+ $orig_scheme = $scheme;
+ if ( !in_array($scheme, array('http', 'https')) ) {
+ if ( ( 'login_post' == $scheme || 'rpc' == $scheme ) && ( force_ssl_login() || force_ssl_admin() ) )
+ $scheme = 'https';
+ elseif ( ('login' == $scheme) && ( force_ssl_admin() ) )
+ $scheme = 'https';
+ elseif ( ('admin' == $scheme) && force_ssl_admin() )
+ $scheme = 'https';
+ else
+ $scheme = ( is_ssl() ? 'https' : 'http' );
+ }
+
+ $url = str_replace( 'http://', "{$scheme}://", get_option('siteurl') );
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= '/' . ltrim($path, '/');
+
+ return apply_filters('site_url', $url, $path, $orig_scheme);
+}
+
+/**
+ * Retrieve the url to the admin area.
+ *
+ * @package WordPress
+ * @since 2.6.0
+ *
+ * @param string $path Optional path relative to the admin url
+ * @return string Admin url link with optional path appended
+*/
+function admin_url($path = '') {
+ $url = site_url('wp-admin/', 'admin');
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= ltrim($path, '/');
+
+ return apply_filters('admin_url', $url, $path);
+}
+
+/**
+ * Retrieve the url to the includes directory.
+ *
+ * @package WordPress
+ * @since 2.6.0
+ *
+ * @param string $path Optional. Path relative to the includes url.
+ * @return string Includes url link with optional path appended.
+*/
+function includes_url($path = '') {
+ $url = site_url() . '/' . WPINC . '/';
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= ltrim($path, '/');
+
+ return apply_filters('includes_url', $url, $path);
+}
+
+/**
+ * Retrieve the url to the content directory.
+ *
+ * @package WordPress
+ * @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 = '') {
+ $scheme = ( is_ssl() ? 'https' : 'http' );
+ $url = WP_CONTENT_URL;
+ if ( 0 === strpos($url, 'http') ) {
+ if ( is_ssl() )
+ $url = str_replace( 'http://', "{$scheme}://", $url );
}
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= '/' . ltrim($path, '/');
+
+ return apply_filters('content_url', $url, $path);
+}
+
+/**
+ * Retrieve the url to the plugins directory or to a specific file within that directory.
+ * You can hardcode the plugin slug in $path or pass __FILE__ as a second argument to get the correct folder name.
+ *
+ * @package WordPress
+ * @since 2.6.0
+ *
+ * @param string $path Optional. Path relative to the plugins url.
+ * @param string $plugin Optional. The plugin file that you want to be relative to - i.e. pass in __FILE__
+ * @return string Plugins url link with optional path appended.
+*/
+function plugins_url($path = '', $plugin = '') {
+ $scheme = ( is_ssl() ? 'https' : 'http' );
+
+ if ( $plugin !== '' && preg_match('#^' . preg_quote(WPMU_PLUGIN_DIR . DIRECTORY_SEPARATOR, '#') . '#', $plugin) ) {
+ $url = WPMU_PLUGIN_URL;
+ } else {
+ $url = WP_PLUGIN_URL;
+ }
+
+ if ( 0 === strpos($url, 'http') ) {
+ if ( is_ssl() )
+ $url = str_replace( 'http://', "{$scheme}://", $url );
+ }
+
+ if ( !empty($plugin) && is_string($plugin) ) {
+ $folder = dirname(plugin_basename($plugin));
+ if ('.' != $folder)
+ $url .= '/' . ltrim($folder, '/');
+ }
+
+ if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
+ $url .= '/' . ltrim($path, '/');
+
+ return apply_filters('plugins_url', $url, $path, $plugin);
}
?>