1.ob_start();

2.@readfile("http://www.phphi.cn/post/186");

3.$string = ob_get_flush();

4.$myfile = fopen("myfile.html","w");

5.fwrite($myfile,$string);

6.ob_clean();

  function make_html($filename, $cache_id = '')
    {
         ob_start();
         $this->display($filename,$cache_id);
         $out = ob_get_contents();
         ob_end_clean();
         return $out;
    }