How to set up a server in php

Build a Web server

1. Directory structure

2. Access the server

访问规则：http://服务器ip地址/php页面
比如：
http://localhost/demo.phphttp://127.0.0.1/demo.php

3. Apache common commands

httpd -v   查看apache版本号   version
httpd -t   检测运行环境  test

4.Internet communication Principle

Access process:

##Steps:

4.1. The client enters the domain name (web address) and performs DNS resolution (Domain Name Server) in the nearest computer room. DNS resolution is to convert the domain name into an IP address.

4.2. Through the IP address Accessing the server

5. DNS resolution

Object: It is inconvenient to access the server by IP address, so access it through the domain name.

The hosts file is used for DNS resolution.

Recommended tutorial:

PHP video tutorial

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