# Iterable - `v::iterable()` Validates if the input is iterable, in other words, if you're able to iterate over it with [foreach](http://php.net/foreach) language construct. ```php v::iterable()->validate([]); // true v::iterable()->validate(new ArrayObject()); // true v::iterable()->validate(new stdClass()); // true v::iterable()->validate('string'); // false ``` *** See also: * [ArrayVal](ArrayVal.md) * [Countable](Countable.md) * [Instance](Instance.md)