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|null ;
 */

function groupViaToken(string $token): ?Group
{

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

/**
 * @return bool
 */
function isLogin(){
    return isset($_SESSION["token"]);
}

/**
 * @param string $password1
 * @param string $password2
 * @return bool
 */
function passwordValidate(string $password1, string $password2 ){
    if($password1 === $password2){
        $uppercase = preg_match('@[A-Z]@', $password1);
        $lowercase = preg_match('@[a-z]@', $password1);
        $number    = preg_match('@[0-9]@', $password1);
        $specialChars = preg_match('@[^\w]@', $password1);

        if(!$uppercase || !$lowercase || !$number || !$specialChars || (strlen($password1) < 8 && strlen($password1) > 255)) {
            return true;
        }
    }
    else false;
}