public static function filterFromPost() { if (!isset($_POST['filter'])) { return ''; } $name = $_POST['filter']; if (!in_array($name, self::$listNames)) { return ''; } $list = new FieldList($name); $listArrays = array(); foreach (self::$listNames as $listName) { if ($listName == $name) { continue; } $listArrays[] = $list->filteredArrayOf($listName); } return implode("\n", array_merge($listArrays[0], $listArrays[1])); }