class Delete{
    public $name = 'error.log';
    function __destruct(){
        
        if (file_exists($this->name)){
            if(unlink($this->name))
                echo $this->name . ' delete';
            else{
                echo "unlink error!";
            }
        }else{
            echo 'file Path does not exist';
        }
    }
}
$d = new Delete();
echo urlencode(serialize($d));