PHP: Declaring sub-namespaces

Defining multiple namespaces in the same file

[edit] Last updated: Fri, 28 Jun 2013

Declaring sub-namespaces

(PHP 5 >= 5.3.0)

Much like directories and files, PHP namespaces also contain the ability to specify a hierarchy of namespace names. Thus, a namespace name can be defined with sub-levels:

Example #1 Declaring a single namespace with hierarchy


<?php
namespace MyProject\Sub\Level;

const CONNECT_OK = 1;
class Connection { /* ... */ }
function connect() { /* ... */  }

?>

The above example creates constant MyProject\Sub\Level\CONNECT_OK, class MyProject\Sub\Level\Connection and function MyProject\Sub\Level\connect.

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AmitU ¶

3 months ago


Note that constant in the example will be global and not in the namespace only.



To do it in the namespace only put the namespace path in the definition

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