PHP cURL没有发送POST数据

I am trying to send some data from my php to a rest service. It seems to make a call correctly to the API but doesnt send any post data.

The Code is :

<?php
    $name="abcd";
    $id="xyz";
    $service_url = 'service/url';
    $curl = curl_init($service_url);
    $curl_post_data = array(
        $name,$id);
   curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
   curl_setopt($curl, CURLOPT_POST, true);
   curl_setopt($curl, CURLOPT_POSTFIELDS, $curl_post_data);
   $curl_response = curl_exec($curl);
   curl_close($curl);
   ?>

I would also like to manipulate the response provided.Can someone tell what i am doing wrong here.

There is a server side validation, The code is :

private String validateAndGetClientName(HttpServletRequest request) throws InvalidRequestException {
    String clientName = request.getParameter("name");
    if (isEmpty(clientName)) {
        throw new InvalidRequestException("Client Name cannot be empty.");
    }
    return clientName.trim();
}

Paramters in http queries only make sense in an associative way, so if they are named. Change the definition of your post data to this:

$curl_post_data = array(
    'name' => $name,
    'id' => $id
);