Appendix B. SPL: The Standard PHP Library

SPL, the Standard PHP library—first introduced with PHP 5.0—provides many handy features for PHP projects. You’ll remember we mentioned its provision of iterator interfaces in Chapter 4—but this is just one of its many useful facets.

The Standard PHP Library is intended to provide best of breed interfaces—as well as abstract and concrete implementations of design patterns and solutions to common problems—while taking advantage of the new object oriented features provided in PHP 5.