• Writing extensions for PHP is not all that hard thanks to the myriad of tools and macros made available to you by the PHP developers. Custom extensions are a great way to add new functionality to the language, or even just to speed up certain operations that would otherwise have been too slow.

  • There is a trade-off between speed and usability that makes extensions the best place to put most code - while it is possible to edit the Zend Engine directly, it does limit your distribution options.

  • There are lots of helpful libraries that have yet to be converted into PHP extensions - pick one and give it your best shot!


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