PHP客户端向服务器端发送请求并向远程服务器发送服务器端请求

Question

My scenario is as follows:

1. when button clicked, client side will post request to server side
2. once server side receive the request, it will post another request to remote sever to get the result
3. once the response comes, server side should echo the response to client.

client

$.post('login_server.php'{act:"post",phone:phone,passwords:passwords},function(e){
      alert(e);
    },'json');

server

$act = isset($_POST["act"]) ? $_POST["act"] : "default";
if($act == "default"){
    var_dump(123123);
}elseif($act == "post"){
    $phone = $_POST["phone"];
    $password = md5($_POST["passwords"]);
    $data_array = array('phone' => $phone,'password' =>$password );
    $jsonStr = json_encode($data_array);
    $url = "http://xx.xx.xx.xx/xxxx/userinfo/login";
    $data = http_post_json($url, $jsonStr); 
    echo json_encode(123);  
}

function http_post_json($url, $jsonStr)
{
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_POST, 1);
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonStr);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                      'Content-Type: application/json; charset=utf-8',
                      'Content-Length: ' . strlen($jsonStr)
                )
            );
  $response = curl_exec($ch);
  $abc = json_encode($response);
  $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  return array($httpCode, $response);
}

I checked the login_server. It can get the response from remote server. But if I add

$response = curl_exec($ch);

the callback function doesn't work.

Is there anyone know this?

BRs Damon

Answer 1

This doesn't work because you encode your array.

$jsonStr = json_encode($data_array);

Try that

curl_setopt($ch, CURLOPT_POSTFIELDS, $data_array);

or

Here you need get the 'json' and decode on your page.

curl_setopt($ch, CURLOPT_POSTFIELDS, 'json='.$jsonStr);

http://php.net/manual/en/function.curl-setopt.php