PHP trait

PHP trait is a language feature introduced in PHP 5.4 that allows code reuse in a class hierarchy without using inheritance. A trait is a set of methods that can be reused across different classes, much like a class but without being instantiated on its own. It is essentially a mechanism for code reuse that allows developers to mix in a set of methods to a class without having to extend that class. Traits can be used to compose a class with multiple behaviors, making it more modular and easier to maintain. Traits are particularly useful when multiple classes share a common set of methods that are not related to the class hierarchy.