Zend_Filter_StripTags remove all the angle brackets... Is this a bug or a feature?
--- code --- $string = 'a > b, a < b, a>b, a<b'; $filter = new Zend_Filter_StripTags(); var_dump($filter->filter($string)); var_dump(strip_tags($string)); --- output --- string(12) "a b, a b, a" string(20) "a > b, a < b, a>b, a"