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.

Related Article: How to Use Traits in PHP
BY Best Interview Question ON 01 May 2020

Example

trait HelloWorld
{
     use Hello, World;
}
class MyWorld
{
     use HelloWorld;
}
$world = new MyWorld();
echo $world->sayHello() . " " . $world->sayWorld(); //Hello World