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The web nowadays requires a level of interactivity never seen before. People love commenting and building communities, and a huge part of that is putting a face to your online presence. To this effect there is a big demand for image processing techniques using web based languages. My web language of choice is PHP and so here is a short walkthrough, including code, on how to create a picture resizing function.
This is a beginners website/course on PHP created for web designers who have little to no programming experience. Where most other PHP tutorials and books assume you know programming (or at least, that's what it seems like ...) killerphp.com assumes you need to have things explained (and demonstrated) in non-nerd terms.
Basic PHP script security covers issues like prevention of SQL injections, XSS and CSRF attacks, variable tampering, etc.
Learn how to save disk space (and waste CPU time) by generating image thumbnails on the fly with PHP and GD libraries.
This tutorial will describe how to create thumbnail images on the fly using PHP. Furthermore you will learn how to process a whole folder of images and create their thumbnails. Since this requires the GD library, you will need an installation of PHP with at least GD 2.0.1 enabled.
The first step in our online thumbnail creator is to create a form, and make it possible to upload an image.
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