How big are PHP arrays (and values) really? (Hint: BIG!)How big are PHP arrays (and values) really? (Hint: BIG!) 12. December 2011 Update (2016-06-14): This article is about memory usage in PHP 5. Memory usage in PHP 7 is, for the case covered here, approximately three times lower. For more information, see my article on the hashtable implementation in PHP 7. Upfront I want to thank Johannes and Tyrael for their help in finding some of the more hidden
