Php implements download of Chinese file names

When downloading files, many of my friends convert their Chinese names to English or full numbers before downloading them. next I will introduce how to directly download files using Chinese file names without garbled characters. Copy the code as follows...

When downloading files, many of my friends convert their Chinese names to English or full numbers before downloading them. next I will introduce how to directly download files using Chinese file names without garbled characters.

For example

The code is as follows:
$ Filename = "Chinese file name .txt "; Header ('content-Type: application/octet-stream '); Header ('content-Disposition: attachment; filename = '. $ filename ); Print "Hello! "; ?>

Save the program as a UTF-8 code and then access, IE6 download file name will be garbled. The file name downloaded under FF3 is only in Chinese. Everything works normally in Opera 9.

The output header is actually like this:

The code is as follows:
Content-Disposition: attachment; filename = Chinese file name. txt is a multilingual Content-Disposition encoded according to RFC2231.

It should be defined as follows:

The code is as follows:
Content-Disposition: attachment; filename * = "attachment"

That is:

Add the equal sign after filename *
The filename value is divided into three sections by single quotes, which are character set (utf8), Language (null), and URL code file names.
It is best to add double quotation marks. Otherwise, the content after the space in the file name cannot be displayed in Firefox.
Note that the urlencode result is not the same as the urlencode function result of php. The urlencode of php will replace the space with +, and replace it with % 20 here.

Example 1

The code is as follows:

$ File = "/tmp/Chinese name .tar.gz "; $ Filename = basename ($ file ); Header ("Content-type: application/octet-stream "); // Process the Chinese file name $ Ua = $ _ SERVER ["HTTP_USER_AGENT"]; $ Encoded_filename = urlencode ($ filename ); $ Encoded_filename = str_replace ("+", "% 20", $ encoded_filename ); If (preg_match ("/MSIE/", $ ua )){ Header ('content-Disposition: attachment; filename = "'. $ encoded_filename .'"'); } Else if (preg_match ("/Firefox/", $ ua )){ Header ("Content-Disposition: attachment; filename * =" utf8'' ". $ filename .'"'); } Else { Header ('content-Disposition: attachment; filename = "'. $ filename .'"'); } Header ('content-Disposition: attachment; filename = "'. $ filename .'"'); Header ("Content-Length:". filesize ($ file )); Readfile ($ file ); ?>

In this way, we have completely solved the problem of garbled Chinese characters.