[php] Laravel is there a way to add values to a request array

I come across a situation in Laravel while calling a store() or update() method with Request parameter to add some additional value to the request before calling Eloquent functions is there any way for that.

function store(Request $request) 
{
  // some additional logic or checking
  User::create($request->all());
}

$request->offsetSet(key, value);

I used this code to add something to my request.

$req->query->add(['key'=>'variable']);
$req->request->add(['key'=>'variable']);

In laravel 5.6 we can pass parameters between Middlewares for example:

FirstMiddleware

public function handle($request, Closure $next, ...$params)
{
    //some code
    return $next($request->merge(['key' => 'value']));
}

SecondMiddleware

public function handle($request, Closure $next, ...$params)
{
    //some code
    dd($request->all());
}

you can use laravel helper and request() magic method ...

request()->request->add(['variable1'=>'value1','variable2'=>'value2']);

I tried $request->merge($array) function in Laravel 5.2 and it is working perfectly.

Example:

$request->merge(["key"=>"value"]);

You can add parameters to the request from a middleware by doing:

public function handle($request, Closure $next)
{
    $request->route()->setParameter('foo', 'bar');
    return $next($request);
}

The best one I have used and researched on it is $request->merge([]) (Check My Piece of Code):

public function index(Request $request) {
    not_permissions_redirect(have_premission(2));
    $filters = (!empty($request->all())) ? true : false;
    $request->merge(['type' => 'admin']);
    $users = $this->service->getAllUsers($request->all());
    $roles = $this->roles->getAllAdminRoles();
    return view('users.list', compact(['users', 'roles', 'filters']));
}

Check line # 3 inside the index function.

To add a new parameter for ex: newParam to the current Request Object, you can do:

$newParam = "paramvalue";
$request->request->add(['newParam' => $newParam]);

After adding the new parameter, you would be able to see this newly added parameter to the Request object by:

dd($request);//prints the contents of the Request object

Referring to Alexey Mezenin answer:

While using his answer, I had to add something directly to the Request Object and used:

$request->request->add(['variable', 'value']);

Using this it adds two variables :

$request[0] = 'variable', $request[1] = 'value'

If you are a newbie like me and you needed an associate array the correct way to do is

$request->request->add(['variable' => 'value']);

Hope I saved your some time

PS: Thank you @Alexey, you really helped me out with your answer

You can access directly the request array with $request['key'] = 'value';

enough said on this subject but i couldn't resist to add my own answer. I believe the simplest approach is

request()->merge([ 'foo' => 'bar' ]);

Based on my observations:

$request->request->add(['variable' => 'value']); will (mostly) work in POST, PUT & DELETE methods, because there is value(s) passed, one of those is _token. Like example below.

<form action="{{ route('process', $id) }}" method="POST">
    @csrf
</form>

public function process(Request $request, $id){
    $request->request->add(['id' => $id]);
}

But [below code] won't work because there is no value(s) passed, it doesn't really add.

<a href='{{ route('process', $id) }}'>PROCESS</a>

public function process(Request $request, $id){
    $request->request->add(['id' => $id]);
}

---

When using GET method you can either declare Request and assign value(s) on it directly. Like below:

public function process($id){
    $request = new Request(['id' => $id]);
}

Or you can use merge. This is better actually than $request->request->add(['variable' => 'value']); because can initialize, and add request values that will work for all methods (GET, POST, PUT, DELETE)

public function process(Request $request, $id){
    $request->merge(['id' => $id]);
}

Tag: laravel5.8.11

You can also use below code

$request->request->set(key, value).

Fits better for me.