In

v::in(mixed $haystack)
v::in(mixed $haystack, boolean $identical = false)

Validates if the input is contained in a specific haystack.

For strings:

v::in('lorem ipsum')->validate('ipsum'); //true

For arrays:

v::in(array('lorem', 'ipsum'))->validate('lorem'); //true

A second parameter may be passed for identical comparison instead of equal comparison.

Message template for this validator includes {{haystack}}.

See also: