create a slug from text using php

helper.php

<?php 

/**
 * _slug
 *
 * @param  mixed $str
 * @param  mixed $delimiter
 * @return void
 */
function _slug($str, $delimiter = '-') {

    return strtolower(trim(preg_replace('/[\s-]+/', $delimiter, preg_replace('/[^A-Za-z0-9-]+/', $delimiter, preg_replace('/[&]/', 'and', preg_replace('/[\']/', '', iconv('UTF-8', 'ASCII//TRANSLIT', $str))))), $delimiter));

}