if (strlen($string) > 500)
        {
            $stringCut = substr($string, 0, 500);

            $string = substr($stringCut, 0, strrpos($stringCut, ' ')).'... <a href="#" onclick="showAjaxModal('.base_url().'index.php?modal/popup/readmore/' . $row['categories_id'].')"> ...Read More </a> ' ;

        }
    echo $string;
?>