12 Jul 2016

PHP image processing class library and demonstration sharing, PHP image processing class library. PHP image processing class library and demonstration sharing, PHP image processing class library I simply wrote a PHP image processing class library. Although it has relatively few functions, it is not too advanced at present and will be used in the future.

01 Dec 2025

InterventionImage is a PHP library designed to simplify image processing tasks. After installation, configure the driver and load images. It supports resizing, cropping, adding watermarks, applying filters, saving or outputting images. It is suitable for GD and Imagick and is often used for image upload processing in Web projects.

19 Nov 2025

Using the GD library to resize images requires first loading the source image, creating the target canvas and resampling, and finally saving the result and releasing resources. First obtain the image information through getimagesize, and call imagecreatefromjpeg/png/gif to load the image according to the MIME type. Then calculate the new size that maintains the aspect ratio, use imagecreatetruecolor to create a new image, and after processing the transparency, copy the original image pixels to the new canvas with high quality through imagecopyresampled. Finally, select imagejpeg/imagepng/imagegif to output the image according to the original format and set the corresponding parameters. After completion, call imaged

12 Jul 2016

PHP implements image upload and compression. PHP implements image uploading and compression. This article explains the implementation method of PHP image uploading and compression and shares it with you for your reference. The specific content is as follows. Three files connect.p are used.

13 Dec 2025

This tutorial aims to solve the common problem of file size not changing after PHP image compression. The core reason is that after the compression operation is completed, the original uncompressed file is mistakenly moved again and overwrites the compressed file. This article will reveal this problem through code analysis and provide the correct solution. It emphasizes that redundant file movement operations should be avoided when performing image processing to ensure that the compression results are preserved.

12 Jul 2016

Based on PHP, achieve equal compression of image size. Implementing equal-proportional image size compression based on PHP. Without further ado, I will directly post the relevant code for PHP equal-proportional image size compression. The specific code is as follows: php$im = imagecreatefr