让php出现Fatal error时也能执行析构函数

class A {
public function __construct() {
register_shutdown_function(array($this, '__destruct')); //保证Fatal error时能执行析构函数
echo 1 . '|';
}

public function __destruct() {
// TODO: Implement __destruct() method.
echo 2;
}

}

$a = new A();
non::haha();