PHP caching function code_PHP tutorial

Copy code The code is as follows:

**
* @Description: File cache output
* @parameter : $cachefile => cache file (absolute path)
* @Parameter: $pertime => Cache output interval
* @Parameter: $sql => sql statement
* @Parameter: $templatefile => Template file name (absolute path)
* www.php100.com from
**/
function __cache($cachefile,$pertime,$sql,$templatefile) {
global $db;
if(time() - @filemtime($cachefile) >= $pertime) {
$query = $db->query($sql);
while($r =$db->fetch($query)) {
$cachelist[] = $r;
}
include $templatefile.'.php';
$cacheserialize = serialize($cachelist );
file_put_contents($cachefile,$cacheserialize);
}else{
$cachelist = unserialize(file_get_contents($cachefile));
include $templatefile.'.php';
}
}

http://www.bkjia.com/PHPjc/319461.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/319461.htmlTechArticleCopy the code code as follows: ** * @Description: File cache output* @Parameter: $cachefile = cache file ( Absolute path) * @parameter: $pertime = interval time for cached output* @parameter: $sql = sq...