I need my server to download a file and write it to the server's filesystem. The problem is that all the PHP examples I've seen download the file into server RAM and then write to a file.
Since I'm dealing with large files, I'd like PHP to read the file from the other server and immediately write what it reads to a local file.
Use curl
like this:
<?php
$url = 'http://www.example.com/a-large-file.zip';
$path = '/path/to/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);
?>