我发现在 PHP 类中编写(file_put_contents或简单fwrite)是不可能__destruct()的,如何调用它?全功能:
    function __destruct()
    {
        foreach($this->data as $name=>$value) $$name=$value;    
        if(count($this->modules)>0)
        {   foreach($this->modules as $name=>$value) 
            {   
                ob_start();
                include $value;
                $content=ob_get_contents();
                ob_end_clean();
                $$name = $content;
            }
        }                   
        ob_start();
        include $this->way;
        $content = ob_get_contents();
        ob_end_clean();
        $fp = fopen('cache.txt', 'w+');
        fputs($fp, $content);
        fclose($fp);
        echo $content; 
    }