4.26 Further readingThis is NOT the latest copy of this book; click here for the latest version.
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Learning how to use functions in PHP should not be like an American-style spelling bee where you need to memorise wholesale large chunks of information and be able to reel it off as and when it is required. Instead, you will find it is better to keep a general function overview in the back of your head so that you know roughly what functions are available, then refer back here for more specific usage information as necessary.
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Having said that, Zak Greant et al has produced an excellent book, "PHP Functions Essential Reference", that would be good to consider if you find this book is missing things of interest to you.
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Unless you really like a challenge, don't bother trying to remember parts of the ASCII table. Not only is it not very helpful with the chr() and ord() functions close to hand, but it's also available online at www.asciitable.com
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