The shuffle() and array_rand() functions are fairly good at providing pseudo-random information, but the whole topic of randomisation is much more massive and complex than you may realise. If you are interested in learning more about randomisation, I suggest you learn from the best: Donald Knuth's "Art of Computer Programming, Volume 2: Seminumerical Algorithms" should do the trick, if your maths is up to scratch.
Want to learn PHP 7?
Hacking with PHP has been fully updated for PHP 7, and is now available as a downloadable PDF. Get over 1200 pages of hands-on PHP learning today!
If this was helpful, please take a moment to tell others about Hacking with PHP by tweeting about it!
Next chapter: Next chapter >>
Previous chapter: Exercises
Jump to:
Home: Table of Contents
Copyright ©2015 Paul Hudson. Follow me: @twostraws.