Using this validation type you can require several input (element) types to be filled, these are : inputText, inputCheckbox, select (even dynamic, tree or multiple selects), inputRadio (even dynamic radio).
Below are the dumps of some PHP variables - submit the form to see the changes!
Contents of the $_POST array:
$_POST = array (
)
Results of a $clonefish->getElementValues() call: array ( 'name' => NULL, 'acceptrules' => 0, 'drink' => NULL, 'think' => NULL, 'id' => 'validrequired', )