Arrays play an indispensable role in programming, and are ubiquitous in every imaginable type of application, Web-based or not. The purpose of this chapter was to bring you up to speed regarding many of the PHP functions that will make your programming life much easier as you deal with these arrays.
The next chapter focuses on yet another very important topic: object-oriented programming. This topic has a particularly special role in PHP 5, because the process has been entirely redesigned for this major release.
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