✏ EDIT: Validator.php<?php
class Validator
{
    public static function required(array $data, array $fields): array
    {
        $errors = [];
        foreach ($fields as $field) {
            if (!isset($data[$field]) || trim((string)$data[$field]) === '') {
                $errors[$field] = ucfirst(str_replace('_', ' ', $field)) . ' is required.';
            }
        }
        return $errors;
    }

    public static function email(?string $email): bool
    {
        return $email === null || $email === '' || filter_var($email, FILTER_VALIDATE_EMAIL) !== false;
    }

    public static function phone(?string $phone): bool
    {
        if ($phone === null || $phone === '') return true;
        return (bool)preg_match('/^[0-9+\-\s()]{7,20}$/', $phone);
    }
}


 [✗] CANCEL

[~] Kerym Chaeceran