Creating a slug from Arabic letters

PHP Arabic Slugs

<?php

$stringParts = array_values(array_filter(explode(" ", 'مقالة جديدة')));

$slug = '';
foreach ($stringParts as $key =>  $string) {
    $hyphen = ($key < sizeof($stringParts) - 1) ? '-' : '';
    $slug .= $string . $hyphen;
}

var_dump($slug);
// "مقالة-جديدة"