1# BoolVal 2 3- `v::boolVal()` 4 5Validates if the input results in a boolean value: 6 7```php 8v::boolVal()->validate('on'); // true 9v::boolVal()->validate('off'); // true 10v::boolVal()->validate('yes'); // true 11v::boolVal()->validate('no'); // true 12v::boolVal()->validate(1); // true 13v::boolVal()->validate(0); // true 14``` 15 16*** 17See also: 18 19 * [BoolType](BoolType.md) 20 * [CallableType](CallableType.md) 21 * [FloatType](FloatType.md) 22 * [FloatVal](FloatVal.md) 23 * [IntType](IntType.md) 24 * [No](No.md) 25 * [NullType](NullType.md) 26 * [ObjectType](ObjectType.md) 27 * [ResourceType](ResourceType.md) 28 * [StringType](StringType.md) 29 * [TrueVal](TrueVal.md) 30 * [Type](Type.md) 31 * [Yes](Yes.md) 32