-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, $start);
- // If there is no post stop.
- if ( empty($posts) )
- return;
-
- // Even though we limited get_posts to return only 1 item it still returns an array of objects.
- $post = $posts[0];
-
- if ( empty($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->ID);
-
- $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);
+function get_previous_post_link( $format = '« %link', $link = '%title', $in_same_cat = false, $excluded_categories = '' ) {
+ return get_adjacent_post_link( $format, $link, $in_same_cat, $excluded_categories, true );