# No - `No()` - `No(bool $locale)` Validates if value is considered as "No". ```php v::no()->validate('N'); // true v::no()->validate('Nay'); // true v::no()->validate('Nix'); // true v::no()->validate('No'); // true v::no()->validate('Nope'); // true v::no()->validate('Not'); // true ``` This rule is case insensitive. If `$locale` is TRUE, uses the value of [nl_langinfo()](http://php.net/nl_langinfo) with `NOEXPR` constant. ## Changelog Version | Description --------|------------- 0.7.0 | Created *** See also: - [BoolType](BoolType.md) - [BoolVal](BoolVal.md) - [Yes](Yes.md)