Laravel Controller use same object in two functions - php

Question

Is there a way to use a object variable instantiated from a class in two functions?
Here's the code I've tried, but its just returning null:
class bookAppointmentsController extends APIController
{
private $business;
public funcition check($key)
{
$this->business = new APIClass();
$setconnection = $this->business->connectAPI($key);
}
public function book()
{
dd($this->business) //returns null
$this->business->book();
}
}
I am trying to use the $business object in two functions but it does not work, when I dd($business) it returns null
Any way to do this?

Answer 1

Move the instantiation to the constructor:
public function __construct(APIClass $business)
{
$this->business = $business;
}
However, it would be better if you make Laravel do the heavy lifting and prepare the APIClass for you.
In your AppServicePorvider under the register method, you can create the APIClass
/**
* Register any application services.
*
* #return void
*/
public function register()
{
$this->app->bind('APIClass', function ($app) {
$api = new APIClass();
// Do any logic required to prepare and check the api
$key = config('API_KEY');
$api->connectAPI($key);
return $api;
});
}
Check the documentations for more details.

Answer 2

Maybe the solution could be to make the variable Global
You could make the variable global:
function method( $args ) {
global $newVar;
$newVar = "Something";
}
function second_method() {
global $newVar;
echo $newVar;
}
Or you could return it from the first method and use it in the second method
public function check($key)
{
$this->business = new APIClass();
$setconnection = $this->business->connectAPI($key);
return $this->business;
}
public function book()
{
$business = check($key);
$business->book();
}