PHP obtains the instance code of the client and server IP address.

The PHP code for obtaining the IP addresses of the client and server is as follows:

1. <? Php
2. Echo "(1) the IP address of the user who browses the current page is :";
3. Echo $ _ SERVER [REMOTE_ADDR];
4. Echo "<br/> ";
5. Echo "(2) the IP address of the user browsing the current page is :";
6. Echo getenv (REMOTE_ADDR );
7. Echo "<br/> ";
8. Echo "the IP address of the host www.ite5e.com is :";
9. Echo gethostbyname (<a href = "http://www.ite5e.com"> www.baidu.com </a> );
10. ?>