Pass variable from one method to another in same controller Laravel

问题

I need to pass select option value from store method to show i need to pass the $typeg value to show method

public function store(Request $request ) {
   $typeg = $request->input('type');
}

public function show($id) {
   dd($this->store($typeg));
}

i get Undefined variable:

or

Too few arguments to function app\Http\Controllers\appController::show(), 1 passed and exactly 2 expected

回答1:

Store your data on session (or somewhere else like cookie, cache, database). So you can reach the data later.

class SomeController extends Controller {


public function store(Request $request ) {
   session(["typeg"=>$request->input('type')])
}

public function show($id) {
   dd(session("typeg"));
}

回答2:

Try this on the first function you have some variable witch you want to pass it to another function\method

Than you need to use $this and the name of the other method you'd like to pass the var too something like this.

public function oneFunction(){
    $variable = "this is pretty basic stuff in any language";
    $this->anotherFunction($variable)
}

public function anotherFunction($variable){
    dd($variable);
}

来源：https://stackoverflow.com/questions/51855119/pass-variable-from-one-method-to-another-in-same-controller-laravel