Ticket #9886: apply_filters_ref_array.diff

wp-includes/plugin.php

@@ -174 +174 @@
 }
 
 /**
+ * Execute functions hooked on a specific filter hook, specifying arguments in an array.
+ *
+ * @see apply_filters() This function is identical, but the arguments passed to the
+ * functions hooked to <tt>$tag</tt> are supplied using an array.
+ *
+ * @package WordPress
+ * @subpackage Plugin
+ * @since 3.0
+ * @global array $wp_filter Stores all of the filters
+ * @global array $merged_filters Merges the filter hooks using this function.
+ * @global array $wp_current_filter stores the list of current filters with the current one last
+ *
+ * @param string $tag The name of the filter hook.
+ * @param array $args The arguments supplied to the functions hooked to <tt>$tag</tt>
+ * @return mixed The filtered value after all hooked functions are applied to it.
+ */
+function apply_filters_ref_array($tag, $args) {
+        global $wp_filter, $merged_filters, $wp_current_filter;
+
+        $wp_current_filter[] = $tag;
+
+        $value = $args[0];
+
+        // Do 'all' actions first
+        if ( isset($wp_filter['all']) ) {
+                $all_args = func_get_args();
+                _wp_call_all_hook($all_args);
+        }
+
+        if ( !isset($wp_filter[$tag]) ) {
+                array_pop($wp_current_filter);
+                return $value;
+        }
+
+        // Sort
+        if ( !isset( $merged_filters[ $tag ] ) ) {
+                ksort($wp_filter[$tag]);
+                $merged_filters[ $tag ] = true;
+        }
+
+        reset( $wp_filter[ $tag ] );
+
+        do {
+                foreach( (array) current($wp_filter[$tag]) as $the_ )
+                        if ( !is_null($the_['function']) )
+                                $value = call_user_func_array($the_['function'], array_slice($args, 0, (int) $the_['accepted_args']));
+
+        } while ( next($wp_filter[$tag]) !== false );
+
+        array_pop( $wp_current_filter );
+
+        return $value;
+}
+
+/**
  * Removes a function from a specified filter hook.
  *
  * This function removes a function attached to a specified filter hook. This