In today’s tutorial, we will take a further look at the kinds of things that you can do with PHP using one of the PHP extensions. As we have mentioned before, PHP is easily extended to include support for a variety of different 3rd party file types and protocols. Today we will start looking at an extension that lets you create images – the GD extension. This is easy to install (instructions are given) and a tutorial project is included, involving getting the EXIF data of a digital camera image, grabbing a thumbnail through the free GD library.

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