<?php
namespace App\Helpers;

class PhoneHelper
{
    public static function format($phone)
    {
        $phone = preg_replace('/[^0-9]/', '', $phone);
        if (strlen($phone) == 10) {
            return preg_replace('/([0-9]{3})([0-9]{3})([0-9]{4})/', '$1-$2-$3', $phone);
        }
        return $phone;
    }
}
