$method public property An anonymous function or the name of a

validateValue() protected method Validates a value.

$depends public property public

$extensions public property A list of file name extensions that

validateAttribute() public method Validates a single attribute

validateAttribute() public method Validates a single attribute

$requiredValue public property The desired value that the attribute

validateValue() protected method Validates a value.

$skipOnArray public property Whether the filter should be skipped

validateAttributes() public method Validates the specified