phpOMS/Utils/RnG/Phone.php

<?php
/**
 * Orange Management
 *
 * PHP Version 7.2
 *
 * @package    TBD
 * @copyright  Dennis Eichhorn
 * @license    OMS License 1.0
 * @version    1.0.0
 * @link       http://website.orange-management.de
 */
declare(strict_types=1);

namespace phpOMS\Utils\RnG;

/**
 * Phone generator.
 *
 * @package    Framework
 * @license    OMS License 1.0
 * @link       http://website.orange-management.de
 * @since      1.0.0
 */
class Phone
{

    /**
     * Get a random phone number.
     *
     * @param bool  $isInt     This number uses a country code
     * @param array $layout    Number layout
     * @param array $countries Country codes
     *
     * @return \DateTime
     *
     * @since  1.0.0
     */
    public static function generatePhone(
        $isInt = true, 
        $layout = [
            'struct' => '+$1 ($2) $3-$4',
            'size'   => [null, [3, 4], [3, 5], [3, 8],],], 
            $countries = null
    ) {
        $numberString = $layout['struct'];

        if ($isInt) {
            if ($countries === null) {
                $countries = ['de' => 49, 'us' => 1];
            }

            $numberString = \str_replace('$1', $countries[array_keys($countries)[rand(0, \count($countries))]], $numberString);
        }

        $numberParts = substr_count($layout['struct'], '$');

        for ($i = ($isInt ? 2 : 1); $i < $numberParts; ++$i) {
            $numberString = \str_replace(
                '$' . $i, StringUtils::generateString($layout['size'][$i - 1][0], $layout['size'][$i - 1][1], '0123456789'),
                $numberString
            );
        }

        return $numberString;
    }
}