Home Backend Development PHP Tutorial php 文件下载 出现下载文件内容乱码损坏的解决方法

php 文件下载 出现下载文件内容乱码损坏的解决方法

Jun 20, 2016 pm 12:31 PM

在做PHP程序时,需要使用PHP做的文件下载

那做就做呗把代码复制过来改了一改.

很多效果也出来了

那么点击下载后,恩,本以为搞定了文件下载,谁知道,图片打开的时候提示文件损坏,这我就观察了文件的大小.似乎真是多了 1KB左右.

使用PS打开,恩,提示了损坏,不过图象可以出来.

那么我就认为是 那多出来的 1kb的问题了.

然后,我把一个txt上传上去,然后下载.

果然发现,文件的前面以及后面,都多了几个 字符.

那我就在想应该怎么去掉啊.各种百度,谷歌,上论坛提问.

最后,经过我一个多小时的搜索,终于找到了解决办法.

代码如下

public function download(){    $upload=M('upload');    $data=$upload->find($_GET['id']);    if(empty($data)){        header('HTTP/1.0 404 Not Found');        header('Location: .');    }else{    $path='./public/Uploads/'.$data['savename'];    header("Content-Type:".$data['type']);    header('Content-Disposition: attachment; filename="'.$data['name'].'"');    header('Content-Length:'.$data['size']);    ob_clean();    flush();    readfile($path);    }}
Copy after login

注意:

ob_clean();flush();
Copy after login

这个是关键哦.用了这两函数,搞定,图片正常打开,文字也不乱码.


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