PHP JSON，得到回报

I have a php script that i use to send json to another server, but i need to get the return, but i'm not getting, how can i do this?

The return is a json too.

This code is working, but i'm not getting the return.

The return that i need is like this: {"Online":"true"}

$data = array(
    "ServerId"      =>  $data_server[2],
    "ServerPath"    =>  "/home/slsolucoes/MTA/",
    "MaxPlayers"    =>  $data_config[3],
    "Port"          =>  $data_server[3],
    "HttpPort"      =>  $data_server[3]
    );

$options = array(
    "http"      =>  array(
        "method"    =>  "POST",
        "content"   =>  json_encode($data, JSON_UNESCAPED_SLASHES),
        "header"    =>  "Content-Type: application/json
"."Accept: application/json
"
        )
    );

$context  = stream_context_create($options);
$result = file_get_contents($data_server[4], false, $context );
$response = json_decode($result);
echo($response);