CI slug

<?php

class Slug {

    public function create_slug($slug, $table)
    {
        $CI =& get_instance();
        $CI->load->helper('url');
        $CI->load->helper('text');
        $CI->load->database();

        $slug = strtolower(url_title(convert_accented_characters($slug)));

        $query = $CI->db->query("SELECT * FROM $table WHERE slug = '$slug'");
        $count = $query->num_rows();

        if ($count == 1 ) {

                do
                {
                $count++;
                $slug .= '-'.$count;
                }  while ($count == 0);

       }

        return $slug;

    }

}
?>