Symfony，为移动应用程序，桌面应用程序和网站实现Web服务器

Question

I already have a mobile app that retrieve some data from database, show it to the user by php scripts that execute querys on a database, and return a json with results to my app.

I also have a desktop app that use other php scripts to retrieve data on same database, and next step is to implement a website too.

Now I think that having a script for each operation that my app support is not the best practice, so I've decided to use Symfony framework for organize my server scripts better.

For now I've created a new PHP Symfony project, replicated my database on localhost, generated a bundle for db operations, mapped sql tables, generated entities and generated a crud controller for each entity.

Now I don't know how to go ahead.

How can I make my project return only json messages for each operation (and not an html page with result as happen by default)?

Answer 1

You must return the json string at the end of an action!

eg

public function ajaxAction(Request $request){

    //get some data from doctrine, do other stuff

    //generate a json string from it and return it

    $json = json_encode($data);
    $response = new Response($json, 200);
    $response->headers->set('Content-Type', 'application/json');
    return $response;
}

Now your Route for that action only return the json string!