//******************* 
// Function: mpCheckPass 
// Author: MicroPay 
// Parameters:  
//      userId - the user id you have in MicroPay  
//      contentId - the content id the user want  
//      password - the password you want to check 
// Return: <0 - error,  >0 - ok 
//******************* 
function mpCheckPass($userId, $contentId, $password) 
{ 
     $request = "http://www.micropay.co.il/ExtApi/PassCheck.php?get=1&uid=".$userId."&cid=".$contentId."&pass=".$password; 
     $curlSend = curl_init(); 
     curl_setopt($curlSend, CURLOPT_URL, $request); 
     curl_setopt($curlSend, CURLOPT_RETURNTRANSFER, 1); 
     $curlResult = curl_exec ($curlSend); 
     curl_close ($curlSend); 
      
     if (isset($curlResult) && preg_match ("/^?\d*$/", $curlResult)) 
          return $curlResult; 
     else 
          return 0; 
}