<?php
//功能:生成缩略图
class CreatMiniature
{
//公共变量
var $srcFile = ""; //原图
var $echoType; //输出图片类型，link--不保存为文件；file--保存为文件
var $im = ""; //临时变量
var $srcW = ""; //原图宽
var $srcH = ""; //原图高
//设置变量及初始化
function SetVar($srcFile, $echoType)
{
if (!file_exists($srcFile)) {
echo '源图片文件不存在!';
exit();
}
$this->srcFile = $srcFile;
$this->echoType = $echoType;
$info = "";
$data = GetImageSize($this->srcFile, $info);
switch ($data[2]) {
case 1:
if (!function_exists("imagecreatefromgif")) {
echo "你的GD库不能使用GIF格式的图片，请使用Jpeg或PNG格式！返回";
exit();
}Generate thumbnail function (supports image formats: gif, jpeg, png and bmp)
* @author ruxing.li
* @param string $src Source image path
* @param int $width Thumbnail width (conformal scaling is performed when only the height is specified)
* @param int $width Thumbnail height (conformal scaling is performed when only the width is specified)
* @param string $filename Save path (directly output to the browser if not specified)
* @return bool
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