# BoolType - `v::boolType()` Validates if the input is a boolean value: ```php v::boolType()->validate(true); // true v::boolType()->validate(false); // true ``` *** See also: * [ArrayType](ArrayType.md) * [CallableType](CallableType.md) * [FloatType](FloatType.md) * [FloatVal](FloatVal.md) * [IntType](IntType.md) * [No](No.md) * [NullType](NullType.md) * [ObjectType](ObjectType.md) * [ResourceType](ResourceType.md) * [StringType](StringType.md) * [TrueVal](TrueVal.md) * [Type](Type.md) * [Yes](Yes.md)