$client_login,
"orderid"=>$orderid,
"sum"=>$order_sum,
"client_phone"=>$optional_phone));
$options = array("http"=>array(
"method"=>"POST",
"header"=>
"Content-type: application/x-www-form-urlencoded",
"content"=>$payment_parameters
));
$context = stream_context_create($options);
echo file_get_contents("https://massimopizzeri.server.paykeeper.ru/order/inline/",FALSE, $context);
?>