How php generates image thumbnails

This article mainly introduces the php method for generating image thumbnails, which involves php image operations and is very useful. For more information, see

This article mainly introduces the php method for generating image thumbnails, which involves php image operations and is very useful. For more information, see

This example describes how to generate image thumbnails in php. Share it with you for your reference. The details are as follows:

GD2 library is used here

Function make_thumb ($ src, $ dest, $ desired_width) {/* read the source image */$ source_image = imagecreatefromjpeg ($ src); $ width = imagesx ($ source_image ); $ height = imagesy ($ source_image);/* find the "desired height" of this thumbnail, relative to the desired width */$ desired_height = floor ($ height * ($ desired_width/$ width);/* create a new, "virtual" image */$ virtual_image = imagecreatetruecolor ($ desired_width, $ desired_height);/* copy source image at a resized size */imagecopyresized ($ virtual_image, $ source_image, 0, 0, 0, $ desired_width, $ desired_height, $ width, $ height);/* create the physical thumbnail image to its destination */imagejpeg ($ virtual_image, $ dest, 83 );}

I hope this article will help you with php programming.

,