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;
}