alrahma_sunday_school_api/app/Services/PhoneFormatterService.php

<?php

namespace App\Services;

class PhoneFormatterService
{
    /**
     * Normalize a phone number by stripping non-digits and formatting US numbers.
     */
    public function formatPhoneNumber(string $phone): string
    {
        $digits = preg_replace('/\D+/', '', $phone);
        if ($digits === null || $digits === '') {
            return '';
        }

        if (strlen($digits) === 10) {
            return sprintf('(%s) %s-%s', substr($digits, 0, 3), substr($digits, 3, 3), substr($digits, 6));
        }

        return $digits;
    }

    /**
     * Determine if a phone string contains any digits.
     */
    public function hasDigits(string $phone): bool
    {
        return preg_match('/\d/', $phone) === 1;
    }
}