自己写的php生成缩略图
今天无聊，学了一下php生成 缩略图···然后发现书上说得太复杂了，于是自己搞了一个，不会被拉伸的东东····代码极其简介 ···所以不注释····<?php
$sourceimage = '3.jpg';
$maxthumbWidth = 200;
$maxthumbHeight = 800;
$original = imagecreatefromjpeg($sourceimage);
$dims = getimagesize($sourceimage);
$a = $maxthumbWidth/$dims;
$b = $maxthumbHeight/$dims;
if($a<$b)
{
$thumbWidth = $maxthumbWidth;
$thumbHeight = $dims*$a;
}
else
{
$thumbWidth = $dims*$b;
$thumbHeight = $maxthumbHeight;
}
$thumb = imagecreatetruecolor($thumbWidth,$thumbHeight);
imagecopyresampled($thumb,$original,0,0,0,0,$thumbWidth,$thumbHeight,$dims,$dims);
header("Content-type:image/jpeg");
imagejpeg($thumb);
?>
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