Ticket #4182: wp_list_categories_echo.diff

wp-includes/category-template.php

@@ -227 +227 @@
                 'order' => 'ASC', 'show_last_update' => 0, 'style' => 'list',
                 'show_count' => 0, 'hide_empty' => 1, 'use_desc_for_title' => 1,
                 'child_of' => 0, 'feed' => '', 'feed_image' => '', 'exclude' => '',
-                'hierarchical' => true, 'title_li' => __('Categories'));
+                'hierarchical' => true, 'title_li' => __('Categories'), 'echo' => 1 );
         $r = array_merge($defaults, $r);
         if ( !isset($r['pad_counts']) && $r['show_count'] && $r['hierarchical'] )
                 $r['pad_counts'] = true;
@@ -269 +269 @@
         if ( $title_li && 'list' == $style )
                 $output .= '</ul></li>';
 
-        echo apply_filters('wp_list_categories', $output);
+        $output = apply_filters('wp_list_categories', $output);
+        if ( $r['echo'] ) echo $output;
+        else return $output;
 }
 
 function wp_tag_cloud( $args = '' ) {