Zend - ViewHelper - NeatTrim

class Application_View_Helper_NeatTrim {

    /**
     * Cut string to n symbols and add delim but do not break words.
     * @param  string       $string Cut string to n symbols and add delim but do not break words.
     * @param  int          $limit  Character count to cut to
     * @param  string|NULL  $delim  Delimiter. Default: '...'
     * @return string       string  Processed string
     */
    public function neatTrim($string, $limit, $delim = '...')
    {
        $len = strlen($string);
        if ($len > $limit) {
            $last_space = strrpos(substr($string, 0, $limit), ' ');
            $string     = substr($string, 0, $last_space);
            return $string . $delim;
        } else {
            return $string;
        }
    }
}