private function _xss_check() {        static $check = array('"', '>', '<', '/'', '(', ')', 'CONTENT-TRANSFER-ENCODING');        if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {                        system_error('request_tainting');        }        if($_SERVER['REQUEST_METHOD'] == 'GET' ) {                        $temp = $_SERVER['REQUEST_URI'];        } elseif(empty ($_GET['formhash'])) {                        $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');        } else {                        $temp = '';        }        if(!empty($temp)) {                $temp = strtoupper(urldecode(urldecode($temp)));                foreach ($check as $str) {                                if(strpos($temp, $str) !== false) {                                                system_error('request_tainting');                                }                }        }        return true;}復制代碼

private function _xss_check() {        $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));        if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {                        system_error('request_tainting');        }        return true;}復制代碼