Size of a webpage with PHP and cURL

Size of a webpage with PHP and cURL

<?php
//googles
$curl = curl_init('http://www.google.com');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
curl_exec($curl);
//get the download size of page
print("Download size: " . curl_getinfo($curl, CURLINFO_SIZE_DOWNLOAD) .'<br>');
?>