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. * * @since 11.1 * @throws InvalidArgumentException * @throws UnexpectedValueException */ public function test(SimpleXMLElement $element, $value, $group = null, JRegistry $input = null, JForm $form = null) { $field = (string) $element['field']; // Check that a validation field is set. if (!$field) { throw new UnexpectedValueException(sprintf('$field empty in %s::test', get_class($this))); } if (is_null($form)) { throw new InvalidArgumentException(sprintf('The value for $form must not be null in %s', get_class($this))); } if (is_null($input)) { throw new InvalidArgumentException(sprintf('The value for $input must not be null in %s', get_class($this))); } // Test the two values against each other. if ($value == $input->get($field)) { return true; } return false; } }