Game-Jaming/Backend/Controllers/Group/Group.php

<?php
require_once "../../../bootstrap.php";

use Backend\Models\Group;
use Backend\Models\Password;

/**
 * @param string $token
 * @return Group;
 */

function groupViaToken(string $token){

    if($password = Password::firstWhere('remember_token', $token)){
        return Group::find($password->group_id);
    }
    return null;
}

function isLogin(){
    return isset($_SESSION["token"]);
}