# CallableType - `CallableType()` Validates if the input is a callable value. ```php v::callableType()->validate(function () {}); // true v::callableType()->validate('trim'); // true v::callableType()->validate([new ObjectType, 'methodName']); // true ``` ## Changelog Version | Description --------|------------- 1.0.0 | Created *** See also: - [ArrayType](ArrayType.md) - [BoolType](BoolType.md) - [Callback](Callback.md) - [FloatType](FloatType.md) - [IntType](IntType.md) - [NullType](NullType.md) - [ObjectType](ObjectType.md) - [ResourceType](ResourceType.md) - [StringType](StringType.md) - [Type](Type.md)