session_start();
$u_id = htmlspecialchars($_GET['uid']);
$confirm = htmlspecialchars($_POST['confirm']);
switch($confirm){
	case $u_id:
		if (isset($_SESSION[$u_id], $_POST[$u_id]) && $_SESSION[$u_id] === $_POST[$u_id]){
			unset($_SESSION[$u_id]);
		}else{
			$http = is_ssl() ? 'https' : 'http' . '://';
			$url = $http . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"];
			header("Location: ".$url);
		}
		break;
	default:
		$_POST = array();
		$_SESSION = array();
		break;
}