正在下载的文件已损坏-标头


Downloading file is corrupted - header

我一直在努力找出问题所在,但每次我下载图像并尝试打开它时,都会发现文件已损坏。

$h是从数据库中提取的路径,$h成功地在页面上显示了图像,但我不明白为什么它不会下载。有什么想法吗??

header("Pragma: public"); // required   
header("Cache-Control: private",false); // required for certain browsers  
header('Content-Length: '. filesize("../".$h));  
header('Content-Type: application/octet-stream');  
header('Content-Disposition: inline; filename="'.md5($h).$ext.'"');  
header('Content-Transfer-Encoding:binary');  
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');  
readfile("../".$h);

也许可以尝试在readfile行之前添加以下两个命令。

ob_clean();
flush();
readfile($file);

这些行出现在readfile上的PHP文档的示例中。

试试这个:

$localPath = realpath("../$h");
if (!file_exists($localPath)) {
  exit("Cannot find file located at '$localPath'");
}
header('Pragma: public'); // required   
header('Content-Length: '.filesize($localPath));  
header('Content-Type: application/octet-stream');  
header('Content-Disposition: attachment; filename="'.md5($localPath).'.'.$ext.'"');  
header('Content-Transfer-Encoding: binary');  
header('Cache-Control: must-revalidate, post-check=0, pre-check=0', false);  
header('Cache-Control: private', false); // required for certain browsers  
readfile($localPath);
exit;