Whenever I send a HTTP request from my Swift app to my local server, it always responds with a 500 status, an empty `Optional()` body, and a text/html Content-Type. I'm new to using HTTP in this way, so I am unsure where the error might be. I have installed pecl-http and (I think) I have it properly configured. I also (think) that I am setting the body and content type properly in the PHP code. I followed the Swift part of [this tutorial](http://jamesonquave.com/blog/making-a-post-request-in-swift/) for my Swift code and created the PHP myself; I just have no idea where the problem is. I think my error is in sending/receiving the response, so that's the code I have attached. 

**HTTP Response**

```
Response: <NSHTTPURLResponse: 0x7f8b44828b80> { URL: http://localhost/practicejournal/includes/php/json_login.php } { status code: 500, headers {
    Connection = close;
    "Content-Length" = 0;
    "Content-Type" = "text/html";
    Date = "Sun, 21 Dec 2014 17:12:53 GMT";
    Server = "Apache/2.4.9 (Unix) PHP/5.5.14";
    "X-Powered-By" = "PHP/5.5.14";
} }
Body: Optional()
The operation couldn’t be completed. (Cocoa error 3840.)
Error could not parse JSON: 'Optional()'

```

**Swift Code Receiving Response**

```
var task = session.dataTaskWithRequest(request, completionHandler: {data, response,     error -> Void in
        println("Response: \(response)")
        var strData = NSString(data: data, encoding: NSUTF8StringEncoding)
        println("Body: \(strData)")
        var err: NSError?
        var json = NSJSONSerialization.JSONObjectWithData(data, options: .MutableLeaves, error: &err) as? NSDictionary
        if(err != nil) {
            println(err!.localizedDescription)
            let jsonStr = NSString(data: data, encoding: NSUTF8StringEncoding)
            println("Error could not parse JSON: '\(jsonStr)'")
        } else {
            if let parseJSON = json {
                var success = parseJSON["success"] as? Int
                println("Success \(success)")
            } else {
                let jsonStr = NSString(data: data, encoding: NSUTF8StringEncoding)
            }
        }
    })

```

**PHP Code Sending Response**

```
//If Login is successful
$conn = null;
$success = 1;
HttpResponse::status(200);
HttpResponse::setContentType("application/json");
HttpResponse::setData($success);
HttpResponse::send();
//If Login is unsuccessful
function loginError() {
    $conn = null;
    $sucsess = 0;
    HttpResponse::status(200);
    HttpResponse::setContentType("application/json");
    HttpResponse::setData($success);
    HttpResponse::send();
}

```