Retrieve file last modified from file header using CURL
You can do that with following way by using CURLOPT_HEADER
<?php$curl = curl_init();curl_setopt($curl, CURLOPT_URL, $url);// Only headercurl_setopt($curl, CURLOPT_NOBODY, true);curl_setopt($curl, CURLOPT_HEADER, true);// Do not print anything to outputcurl_setopt($curl, CURLOPT_RETURNTRANSFER, true);// get last modified datecurl_setopt($curl, CURLOPT_FILETIME, true);$result = curl_exec($curl);// Get info$info = curl_getinfo($curl);echo "Last modified time : " . date ("d-m-Y H:i:s", $info['filetime']) );?>