<?php 
// // ob_start();
$cache_name = md5(__FILE__). '.html';
$cache_lifetime = 3600;
// echo filectime(__FILE__)."<br>";
// echo filectime($cache_name)."<br>";
// echo file_exists($cache_name)."<br>";
// echo filectime($cache_name)+$cache_lifetime."<br>";
// echo $cache_lifetime."<br>";
// echo time();
 

if(filectime(__FILE__) <= filectime($cache_name) && file_exists($cache_name) && filectime($cache_name) + $cache_lifetime > time())
{   
    exit('123');
    include $cache_name;
    exit;
}
ob_start();

 ?>
 
<b> 搜發  藕粉  qwe色【 皮aasd膚 dsdfg開始s   sss打破12s3123</b>

<?php 
 
$content = ob_get_contents();
ob_end_flush();
$handle = fopen($cache_name, 'w');
fwrite($handle, $content);
fclose($handle);
?>