<?php

declare(strict_types=1);

function isEmpty(array $array){
    foreach ($array as $value => $content) {
        if (empty($content)){
            return true;
        } else {
            return false;
        }
    }
}

function username_taken(object $pdo, string $username){
    if (username_search($pdo, $username)) {
        return true;
    } else {
        return false;
    }
}

function hash_password(string $pwd) {
    $hashed_pw = password_hash($pwd,PASSWORD_BCRYPT,["cost"=>12]);
    return $hashed_pw;
}

function user_register(object $pdo, string $username, string $pwd) {
    user_write($pdo, $username, hash_password($pwd));
}

function print_errors(){
    check_errors();
}