cURL: send data and get response

curl-request_post.php

$url = 'http://domain.tld/path/to/file/or/route/';
$data = $_REQUEST;

$ch = curl_init();
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); //POST, GET, DELETE, PUT
$output = curl_exec($ch);
curl_close($ch);

echo $output;

exit;