首页
学习
活动
专区
工具
TVP
发布
精选内容/技术社群/优惠产品,尽在小程序
立即前往

Declaring sub-namespaces

(PHP 5 >= 5.3.0, PHP 7)

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

代码语言:javascript
复制
<?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.

← Defining namespaces

Defining multiple namespaces in the same file →

代码语言:txt
复制
 ? 1997–2017 The PHP Documentation Group

Licensed under the Creative Commons Attribution License v3.0 or later.

扫码关注腾讯云开发者

领取腾讯云代金券

http://www.vxiaotou.com