Getting SESSION_ID from skrill server - php

Question

Please help me i am having some trouble.
What i want to do is integrate moneybooker in my website.
I studied the "Merchant Integration Manual version 6.17" in 2.3.2 Topic where i have to create and get a SESSION_ID form skrill server by sending payment parameters by post and get the SESSION_ID this session will hold my transaction information like amount and my account.
By using below code i can't retrieve the SESSION_ID from their server.
$url = "https:www.moneybookers.com/app/payment.pl";
$post_data = array (
"prepare_only" => 1,
"amount" => 10,
"currency" => 'USD',
"detail1_description" => "Description",
"detail1_text" => "Text",
"pay_to_email" => "****my**accoutn#yahoo.com"
);
$head = get_web_page($url, $post_data);
echo "<pre>";
print_r($head);
echo "</pre>";
function get_web_page( $url, $post_data )
{
$options = array(
CURLOPT_RETURNTRANSFER => true, // return web page
CURLOPT_HEADER => false, // don't return headers
CURLOPT_FOLLOWLOCATION => true, // follow redirects
CURLOPT_ENCODING => "", // handle all encodings
CURLOPT_USERAGENT => "spider", // who am i
CURLOPT_AUTOREFERER => true, // set referer on redirect
CURLOPT_CONNECTTIMEOUT => 120, // timeout on connect
CURLOPT_TIMEOUT => 120, // timeout on response
CURLOPT_MAXREDIRS => 10, // stop after 10 redirects
);
$ch = curl_init( $url );
curl_setopt_array( $ch, $options );
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
//we are doing a POST request
curl_setopt($ch, CURLOPT_POST, 1);
//adding the post variables to the request
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
$content = curl_exec( $ch );
$err = curl_errno( $ch );
$errmsg = curl_error( $ch );
$header = curl_getinfo( $ch );
curl_close( $ch );
$header['errno'] = $err;
$header['errmsg'] = $errmsg;
$header['content'] = $content;
return $header;
}
The above code works for other sites but not for moneybooker.
But when i submit simple html form, session id is created and shown but i am not being redirected to my site !!

Answer 1

Try adding cookies support
$fh = fopen("cookies.txt", "a+") or die("Can't open file!");
fclose($fh);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_COOKIEFILE, "cookies.txt");
curl_setopt($ch, CURLOPT_COOKIEJAR, "cookies.txt");

Answer 2

When you set CURLOPT_POSTFIELDS with an array, the request will be sent as multipart/form-data, try changing that line to:
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post_data));