tag for the form field object. * @param mixed $value The form field value to validate. * @param string $group The field name group control value. This acts as as an array container for the field. * For example if the field has name="foo" and the group value is set to "bar" then the * full field name would end up being "bar[foo]". * @param JRegistry $input An optional JRegistry object with the entire data set to validate against the entire form. * @param JForm $form The form object for which the field is being tested. * * @return boolean True if the value is valid, false otherwise */ public function test(SimpleXMLElement $element, $value, $group = null, JRegistry $input = null, JForm $form = null) { $params = JComponentHelper::getParams('com_contact'); $banned = $params->get('banned_subject'); if ($banned) { foreach(explode(';', $banned) as $item) { if ($item != '' && JString::stristr($value, $item) !== false) { return false; } } } return true; } }