function true_get($true_arrays) { $allowed_get_keys = array($true_arrays); if((is_array($_GET)) && (!empty($_GET))) { foreach($_GET as $key=>$val) { if(!in_array($key,$allowed_get_keys)) { header("Location:" . $_SERVER['PHP_SELF']); } } } } true_get("a","b");
function true_get(){ $args = func_get_args(); if (array_diff(array_keys((array)$_GET), $args)) { header('Location: ' . $_SERVER['PHP_SELF']); exit(); }}