首页 / 网页编程 / PHP / php生成图片缩略图的方法

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）;}