Another Word wrap from left or right :

public static function myWordWrap ($string, $length=3, $wrap=',', $from='left') { 
        if ($from=='left') $txt=wordwrap($string, $length, $wrap, true); 
            if ($from=='right') {
                $m = strlen($string)%$length;
                if ($m < strlen($string))
                    $txt = substr($string,0,$m).$wrap.wordwrap(substr($string,$m),$length, $wrap, true); 
                else
                    $txt = $string;
            }

            return $txt;
       }