PHP Academy · Lesson

Declaring and Using Namespaces

Wrap classes in namespaces and import them with use statements.

What is a Namespace?

A namespace groups related classes, functions, and constants to avoid naming collisions between libraries.

Use the namespace keyword as the first statement in a PHP file (after <?php).

<?php
namespace App\Services;

class Logger {
    public function log(string $msg): void {
        echo $msg;
    }
}