How to generate image thumbnails in php_PHP tutorial

How to generate image thumbnails in php

The details are as follows:

GD2 library is needed here

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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,$source_image,0,0,0,0,$desired_width,$desired_height,$width,$height); /* create the physical thumbnail image to its destination */ imagejpeg($virtual_image,$dest, 83); }

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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,$source_image,0,0,0,0,$desired_width,$desired_height,$width,$height); /* create the physical thumbnail image to its destination */ imagejpeg($virtual_image,$dest, 83); }

http://www.bkjia.com/PHPjc/980112.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/980112.htmlTechArticleThe method for php to generate image thumbnails is as follows: GD2 library is needed here 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 function make_thumb($src,$dest,$desired_width) { /* read the...