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PHP's Source Code for PHP Developers - Part 3 - Variables

Note: This article was originally published at Planet PHP on 21 March 2012.
Planet PHP

The third part of the PHP's Source Code for PHP Developers series can be found on ircmaxell's blog. It introduces how PHP values are internally represented and how they are used in the source code.

The fourth part, which will again be published on this blog, will cover how arrays are implemented in PHP.