PHP Magento - redirect and send data via post without form

Question

I have 2 php page. I want to redirect page 1 (contains a data (ex. username)) to page 2 that only receive post data.

Here is received code in page 2 (not editable due to development):

if (!$_POST["username"]||$_POST["username"]=="Studio") $username="Studio".rand(100,999);
else $username=$_POST["username"]; 

I tried to use curl for my case, and not get the data I needed.

Here'e my code in page 1:

$src = "http://test.com/test.php"
//open connection
$ch = curl_init();

//set the url, number of POST vars, POST data
curl_setopt($ch,CURLOPT_URL,$src);
curl_setopt($ch,CURLOPT_POST,1);
curl_setopt($ch,CURLOPT_POSTFIELDS,"username=".$title);

//execute post
$result = curl_exec($ch);

//close connection
curl_close($ch);

$this->_redirectUrl($src);

Answer 1

Have you tried using CURL with POST ?

$ch = curl_init();

curl_setopt($ch,CURLOPT_URL, $url); //set URL
curl_setopt($ch,CURLOPT_POST, 1); // make a POST request
curl_setopt($ch,CURLOPT_POSTFIELDS, $post_vars);

//execute post
$result = curl_exec($ch);

//close connection
curl_close($ch);

$post_vars can be something like 'lastname=smith&firstname=bill'