Built-in Classes
Every OOP language comes with some built-in classes, and PHP is no exception. PHP 5 introduces the Standard PHP Library (SPL), which provides a number of ready-made classes and interfaces. As of version 5.1, depending upon how PHP is configured, all in all, there are well over 100 built-in classes and interfaces—a healthy increase from the number available in version 5.0.
Having ready-made objects speeds up development, and native classes written in C offer significant performance advantages. Even if these built-in classes don't do exactly what you want, they can easily be extended to suit your needs.
Note:
There are far too many classes for us to deal with all of them in this book, and some are still not very well documented. ...
Get Object-Oriented PHP now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
