loadHTML＆amp; loadHTMLFile，哪一个更快？

Question

在这两者之间，哪一个更快？直接通过loadHTMLFile或首先cURL获取内容，然后转到loadHTML

$doc = new DOMDocument();
@$doc->loadHTMLFile($url);

或者

$doc = new DOMDocument();
$ch = curl_init();
$timeout = 500;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$data = curl_exec($ch);
curl_close($ch);
@$doc->loadHTML($data);

Answer 1

添加为脚本的最后一行，并尝试每种方法至少3次，以准确了解哪种方法最快。

Page generated in 
<?php echo  round((microtime(TRUE)-$_SERVER['REQUEST_TIME_FLOAT']), 4); ?>
 seconds on <?php echo date("M jS Y"); ?>