PHP处理JSON ......奇怪的行为

Question

I'm trying to upload a file, and some data to my server, using Angular JS to make a POST request via AJAX, while my back end is Laravel 4 (not that it matters much here).

Now I successfully pass this data to my controller. I'm able to do the following:

$data = Input::all();
return $data;

I console.log the data out when the response is successful, and it produces:

Object {
    imageData: "{"title":"Some Title","owner":"Owner Name","source":"Source Name"}", 
    file: Object
}

Okay so this is what I want, but more specifcically I want the stuff inside of imageData.

    $data = Input::all();

    $imageData = $data['imageData'];

    return $imageData;

Okay so console.log that back:

Object {title: "Some Title", owner: "Owner Name", source: "Source Name"}

Great - but now lets grab the individual elements following that trend:

    $data = Input::all();

    $imageData = $data['imageData'];

    $title = $imageData['title'];

    return $title;

Nope: 500 (Internal Server Error). Same happens why I try to access it as an object ($title = $imageData->title.

So how am I supposed to grab the stuff inside of there?

Answer 1

Your problem is that $imageData is a string. That string happens to contain JSON, but it's still a string none the less. You can tell by the fact that it starts and ends with a double quote ", which wouldn't be the case if it were actually JSON.

You problem is likely that you're passing JSON to something, which then converts the data to JSON.