php - Downloading large files with cURL? -

i'm new curl , searched script download remote files server using curl. found this:

<?php     $url  = 'http://www.example.com/a-large-file.zip';     $path = $_server['document_root'] . '/downloads/a-large-file.zip';      $fp = fopen($path, 'w');      $ch = curl_init($url);     curl_setopt($ch, curlopt_file, $fp);      $data = curl_exec($ch);      curl_close($ch);     fclose($fp); ?> 

this script here , works, part. although in article, it's stated code doesn't have problem of php memory limit, it downloads 8 mb of file, no matter size of file.

does have idea limitation coming , how overcome it?

could problem related timeout? try add

curl_setopt($ch, curlopt_timeout, 300); // 300 number of seconds