PHP上传图片时生成缩微图象的函数 实际应用请看http://feifei2.bjedu.gov.cn/CGI-bin/funnymovie.PHP
实际应用请看http://feifei2.bjedu.gov.cn/CGI-bin/funnymovie.PHP
// 这里有很多搞笑电影
// 本函数从源文件取出图象,设定成指定大小,并输出到目的文件
// 源文件格式:gif,jpg,,png
// 目的文件格式:jpg
// $srcfile&58 源文件
// $dstfile&58 目标文件
// $dstW: 目标图片宽度
// $dstH: 目标文件高度
function makethumb($srcFile,$dstFile,$dstW,$dstH) {
??$data = GetImageSize($srcFile,&$info);
??switch ($data[2]) {
????case 1:
????????$im = @ImageCreateFromGIF($srcFile);
????????break;
????case 2:
????????$im = @imagecreatefromjpeg($srcFile);????
????????break;
????case 3:
????????$im = @ImageCreateFromPNG($srcFile);????
????????break;
??}
??$srcW=ImageSX($im);
??$srcH=ImageSY($im);
??$ni=ImageCreate($dstW,$dstH);
??ImageCopyResized($ni,$im,0,0,0,0,$dstW,$dstH,$srcW,$srcH);
??ImageJpeg($ni,$dstFile);
??// 如果需要输出到浏览器,那么将上一句改为ImageJpeg($ni);
??// 如果需要其它格式的图片,改动最后一句就可以了
}

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