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

Note: This article was originally published at Planet PHP on 22 March 2012.
Planet PHP
In this third post of the PHP's Source Code for PHP Developers series, we're going to expand on the prior posts to help understand how PHP works internally. AIn the first post of the Aseries, we looked at how to view PHP's source code, how it's structured as well as some basic C pointers for PHP developers. AThe second post introduced functions into the mix. AThis time around, we're going to dive into one of the most useful structures in PHP: variables.

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