使用关联数组参数从CURL重新路由AJAX

I am trying to access another site using a POST request through ajax. So the access flow became :

AJAX request -> PHP CURL -> www.somedomain.com

This is the code for the AJAX request. I guarantee it passes the parameters correctly:

$("#new_access_token").submit(function(ev){

$.ajax({
    url : "back_access/access_code.php",
    type : "POST",
    data: "access_token[app_id]=601&access_token[subscriber_num]="+$("#input-phone-number").val(),

    success : function(res){
        console.log(res);
    }
});

return false;
 });

The php curl script is here (access_code.php):

    $ch = curl_init();

$url = "http://developer.globelabs.com.ph/oauth/request_authorization";

$data =  array("access_token" => array(

    'app_id' => $_POST['access_token']['app_id'],
    'subscriber_number' => $_POST['access_token']['subscriber_number']

));

curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");   
curl_setopt($ch, CURLOPT_POSTFIELDS,$data);

$result = curl_exec($ch);

print_r($result);

curl_close($ch);

It returns an error of "500". With the correct parameters in terminal curl and Advanced Rest Client, it returns the page. However, this script does not. How do I control the parameters?

because you are posting multidomensional array so You'd have to build the POST string manually, rather than passing the entire array in .. you should add curl header with a form Type multipart and other relative things like accept , content-length etc

curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-type: multipart/form-data"));

if you serialize or jsone_encode the whole field you can send the data but in this case you also need to capture the data and unserialize/json_decode it from server end.