Question

I read an article about namespaces in PHP. But I don’t get what they are used for?

<?php
namespace MyProject {
    // Regular PHP code goes here, anything goes!
    function run()
    {
        echo 'Running from a namespace!';
    }
}

I also read the PHP.net manual about it, but didn’t quite get it.

Answer 1

Consider your write your own class, lets called it Foo. Someone else writes also a part of the project and he calls one of his classes also Foo.

Namespaces solve this problem.

Example:

Namespace MyClasses;

Class Foo
{
}


NameSpace HisClasses;

Class Foo
{
}

$myfoo = new MyClasses\Foo();
$hisfoo = new HisClasses\Foo();