The namespace Command

Namespaces in PHP allow isolating classes, interfaces, functions, and constants. They are especially useful when working with large projects or using third-party libraries. A namespace is defined with the keyword namespace at the beginning of a file.

Syntax

namespace MyProject;

Example

Let's create a simple namespace and a class inside it:

<?php
	namespace MyProject;
	
	class MyClass {
		public function hello() {
			return 'Hello from MyClass';
		}
	}
?>

Example

Accessing a class from another namespace:

<?php
	require_once 'MyClass.php';
	
	$obj = new \MyProject\MyClass();
	echo $obj->hello();
	?>

Code execution result:

'Hello from MyClass'

Example

Using aliases for namespaces:

<?php
	use MyProject\MyClass as MC;
	
	$obj = new MC();
	echo $obj->hello();
?>

The namespace Command

Syntax

Example

Example

Example

See Also