DZ_优秀代码摘录_checktplrefresh

判断是否重新生成缓存文件

function checktplrefresh($maintpl, $subtpl, $timecompare, $templateid, $cachefile, $tpldir, $file) {
	static $tplrefresh, $timestamp, $targettplname;
	if($tplrefresh === null) {
		$tplrefresh = getglobal('config/output/tplrefresh');
		$timestamp = getglobal('timestamp');
	}
	if(empty($timecompare) || $tplrefresh == 1 || ($tplrefresh > 1 && !($timestamp % $tplrefresh))) {
		if(!file_exists(DISCUZ_ROOT.$subtpl)){
			$subtpl = substr($subtpl, 0, -4).'.php';
		}
		//优秀!!  如果模板文件修改时间大于缓存文件修改时间则重新生成缓存
		if(empty($timecompare) || @filemtime(DISCUZ_ROOT.$subtpl) > $timecompare) {
			require_once DISCUZ_ROOT.'/source/class/class_template.php';
			$template = new template();
			$template->parse_template($maintpl, $templateid, $tpldir, $file, $cachefile);
			if($targettplname === null) {
				$targettplname = getglobal('style/tplfile');
				if(!empty($targettplname)) {
					include_once libfile('function/block');
					$targettplname = strtr($targettplname, ':', '_');
					update_template_block($targettplname, getglobal('style/tpldirectory'), $template->blocks);
				}
				$targettplname = true;
			}
			return TRUE;
		}
	}
	return FALSE;
}


 $timecompare  参数传递的是缓存文件的修改时间戳

 @filemtime (函数判断文件最后修改的时间戳)