# FilterVar - `v::filterVar(int $filter)` - `v::filterVar(int $filter, mixed $options)` A wrapper for PHP's [filter_var()](http://php.net/filter_var) function. ```php v::filterVar(FILTER_VALIDATE_EMAIL)->validate('bob@example.com'); //true v::filterVar(FILTER_VALIDATE_URL, FILTER_FLAG_PATH_REQUIRED)->validate('http://example.com'); //true ``` *** See also: * [Callback](Callback.md)