Laravel Response

Laravel 支持直接返回数组或者模型（或者集合），以下两种方式最终会被自动转为 json 响应：

// 直接返回数组
Route::get('/request-json-array', function(){
    $array = array('foo', 'bar');
    //this route should returns json response
    return $array;
});

// 或者返回模型/集合
Route::get('/request-json-model', function(){
    //if 'User' is an eloquent model, this route should returns json response
    return User::all();
});

//响应json
    /*$data = [
        'errCode'=>0,
        'errMsg' =>'success',
        'data'   => 'yxh',
    ];
    return response()->json($data);*/

return Response::make($contents);
return Response::make($contents, 200);
return Response::json(array('key' => 'value'));
return Response::json(array('key' => 'value'))
->setCallback(Input::get('callback'));
return Response::download($filepath);
return Response::download($filepath, $filename, $headers);
// 创建一个回应且修改其头部信息的值
$response = Response::make($contents, 200);
$response->header('Content-Type', 'application/json');
return $response;
// 为回应附加上 cookie
return Response::make($content)
->withCookie(Cookie::make('key', 'value'));