Submit form on one server, process it and then post results to another domain

Question

I have a form on one page with the action set to /process.php

Within the process.php I have the validation of the form and also it writes to a database on the server

Answer 1

Example using curl:

$name = 'Test';
$email = 'test@gmail.com';

$ch = curl_init(); // initialize curl handle
$url = "http://domain2.com/process.php"; 
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_FAILONERROR, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 10); // times out after 10s
curl_setopt($ch, CURLOPT_POST, 1); // set POST method
curl_setopt($ch, CURLOPT_POSTFIELDS, "text=$name&name=$email"); // post fields
$data = curl_exec($ch); // run the whole process
curl_close($ch);

Example without curl: http://wezfurlong.org/blog/2006/nov/http-post-from-php-without-curl/