响应PHP为空

I use jquery to call two url in file indexFunctions.php but the response of server is empty i dont know why please help there is my code

$("#start_peering").submit(function(event){
    $("#wait").html('<img src="ajax-loader.gif">');
    event.preventDefault();
    $.ajax({
            url : 'indexFunctions.php',
            type : 'POST',
            data : {peering:true},
            success : function(data){
                    $("#StbStatus").html(data);
                    $.ajax({
                            url : 'indexFunctions.php',
                            type : 'POST',
                            data : {test_params:true},
                            success : function(data){
                                    $("#results").html(data);
                                    $("#wait").html('');
                                    }
                             });


            }
    });

});

File indexFunctions.php

$rpi="http://192.168.1.15";

  if (isset($_POST['peering']) && isset($_POST['test_params']))
{   
  $url = $rpi."/peering.php?askSTB=true";
  $response = proxy::get($url);
  echo $response;   
  $url = $rpi."/installUSBKeyOnStb.php";
  $response = proxy::get($url);
  echo $response;

 }

 ?>

Thank you in advance.

You seem to be sending two request but checking if both are set at the same time.

if (isset($_POST['peering']) && isset($_POST['test_params']))

You should check for either or not both.

Try changing it to:

if (isset($_POST['peering']) || isset($_POST['test_params']))

You used AND && instead of OR ||