PHP Cache Check_PHP Tutorial

function checkfile($file,$cachetime=60)

{

$file=ROOT_PATH.'/data/cache/'.$file.'.php';

if(is_file($file))

{

//If the file is modified (right-click on the file properties, there is one: modification time) + cache time 60 seconds> current system time, indicating that the cache has not expired

if((filemtime($file)+$cachetime>time()) || !$cachetime)

{

Return true; //Do not update file

}

else

{

Return false; //Update file

}

}

return false;

}

Author: Huangcun Tingyu