Lesson 22 - Image library for working with images in PHP
Up until now, we've completely avoided image manipulation. However, many projects require us to process user images, e.g. his or her avatar, product images for an e-shop, and so on. We'll need to verify whether or not the file is an image, resize it to maintain its aspect ratio, add a watermark, and save the image under the desired format.
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In this tutorial, we'll program an Image library for image manipulation. We'll load JPEG, PNG, and GIF formats and convert them to maintain transparency.
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