Multiple Traits in OOP in PHP

A class can use not one, but several traits. This is where their advantage over inheritance manifests itself. The traits needed for use in a class can be listed separated by commas after the keyword use.

Let's look at an example. Suppose we have two traits. First:

<?php
	trait Helper1
	{
		private $name;
		
		public function getName()
		{
			return $this->name;
		}
	}
?>

Second:

<?php
	trait Helper2
	{
		private $age;
		
		public function getAge()
		{
			return $this->age;
		}
	}
?>

Let's use our traits in a class:

<?php
	class User
	{
		use Helper1, Helper2; // connect traits
		
		public function __construct($name, $age)
		{
			$this->name = $name;
			$this->age = $age;
		}
	}
?>

Create 3 traits named Trait1, Trait2 and Trait3. Let the first trait have a method method1 returning 1, the second trait - a method method2, returning 2, and the third trait - a method method3, returning 3. Let all these methods be private.

Create a class Test that uses all three traits we created. Create a public method getSum in this class, returning the sum of the results of the methods of the connected traits.