Ticket #13489: 13489.patch

wp-includes/link-template.php

@@ -1438 +1438 @@
  * @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) {
+function adjacent_post_link( $format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true ) {
+        echo get_adjacent_post_link( $format, $link, $in_same_cat, $excluded_categories, $previous );
+}
+
+/**
+ * Display adjacent post link.
+ *
+ * Can be either next post link or previous.
+ *
+ * @since 3.2
+ *
+ * @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 get_adjacent_post_link( $format, $link, $in_same_cat = false, $excluded_categories = '', $previous = true ) {
         if ( $previous && is_attachment() )
-                $post = & get_post($GLOBALS['post']->post_parent);
+                $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 ( ! $post )
                 return;
 
         $title = $post->post_title;
 
-        if ( empty($post->post_title) )
-                $title = $previous ? __('Previous Post') : __('Next Post');
+        if ( empty( $post->post_title ) )
+                $title = $previous ? __( 'Previous Post' ) : __( 'Next Post' );
 
-        $title = apply_filters('the_title', $title, $post->ID);
-        $date = mysql2date(get_option('date_format'), $post->post_date);
+        $title = apply_filters( 'the_title', $title, $post->ID );
+        $date = mysql2date( get_option( 'date_format' ), $post->post_date );
         $rel = $previous ? 'prev' : 'next';
 
-        $string = '<a href="'.get_permalink($post).'" rel="'.$rel.'">';
-        $link = str_replace('%title', $title, $link);
-        $link = str_replace('%date', $date, $link);
+        $string = '<a href="' . get_permalink( $post ) . '" rel="' . $rel . '">';
+        $link = str_replace( '%title', $title, $link );
+        $link = str_replace( '%date', $date, $link );
         $link = $string . $link . '</a>';
 
-        $format = str_replace('%link', $link, $format);
+        $format = str_replace( '%link', $link, $format );
 
         $adjacent = $previous ? 'previous' : 'next';
-        echo apply_filters( "{$adjacent}_post_link", $format, $link );
+        return apply_filters( "{$adjacent}_post_link", $format, $link );
 }
 
 /**