Understanding PHP Internals
David P. Sklar · Apress eBooks · 2004
To get the most out of the debugger and code cache chapters that follow, you should understand what happens under the hood when a PHP program runs and generates a Web page. This chapter provides a look inside PHP and explains what happens when a PHP script executes. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.