Chapter 24. Networks
Topics in This Chapter
Most anything you write in PHP will be in the context of a network. It's a language intended primarily to produce HTML documents via the HTTP protocol. PHP allows you to code without worrying about the underlying protocols, but it also allows you to address the protocols directly when necessary. This chapter deals intimately with two important protocols: HTTP and SMTP. These are the protocols for transferring Web documents and mail. I've attempted to describe some common problems and provide solutions. This chapter may address a particular problem you face, such as protecting a Web page with basic HTTP authentication, but it also illustrates generally how to use HTTP headers and communicate with remote servers.
|
