public static function validate_message(Module_Chat $module, $arg) { $arg = trim($arg); $_POST['message'] = $arg; if (0 === ($len = strlen($arg))) { return $module->lang('err_msg_short'); } $maxlen = $module->getMaxMessageLength(); if ($len > $maxlen) { return $module->lang('err_msg_long', array($maxlen)); } return false; }