urlopen.php

// cURL: http://php.net/manual/en/book.curl.php
// cURL Options: http://www.php.net/manual/en/function.curl-setopt.php
// @param $url URL of the request, e.g. https://www.sandbox.paypal.com/cgi-bin/webscr
// @param $data URL encoded request data as array, e.g. $data = array('cmd' => '_notify-validate');
function urlopen($url, $data)
{        
    $curl_handler = curl_init();
    $options = array(CURLOPT_URL => $url,
                     CURLOPT_FAILONERROR => true,
                     CURLOPT_RETURNTRANSFER => true,
                     CURLOPT_TIMEOUT => 3,
                     CURLOPT_POST => true,
                     CURLOPT_POSTFIELDS => http_build_query($data)
                     );
    curl_setopt_array($curl_handler, $options);
    $result = curl_exec($curl_handler);
    curl_close($curl_handler);
    
    return $result;
}