What are traits? How is it used in PHP?
A trait is a group of various methods that reuse in single inheritance. A Trait is intended to reduce some limitations of single inheritance by enabling a developer to reuse sets of processes. We can combine traits and classes to reduce complexity, avoid problems typically associated with Mixins and multiple inheritances.
use Hello, World;
$world = new MyWorld();
echo $world->sayHello() . " " . $world->sayWorld(); //Hello World