首页 / 网页编程 / PHP / php download.php实现代码 跳转到下载文件（response.redirect）

跳转核心代码实现。
复制代码 代码如下:
if （isset（$link））
                {
                    Header（"HTTP/1.1 303 See Other"）;
                    Header（"Location: $link"）;
                    exit;
                }



下面是国外的一篇文章说明。
Hey Chris:
On Wed, Jan 26, 2005 at 12:28:19PM -0500, csnyder wrote:
>
> <？php
> // process form
> ...
> // redirect to results page
> header（ "HTTP/1.1 303 See Other" ）;
> header（ "Location: result.html" ）;
> exit（ "Form submitted, <a href="result.html">continue</a>." ）;
> ？>
Good point. But some feedback here. The optimail syntax is:
<？php
// process form
// ...
// redirect to results page
header（"Status: 303 See Other" ）;
header（"Location: http://www.jb51.net/result.html"）;
？>
Here"s why...
Using "Status:" in the header is better because the resulting headers from
Apache are more correct:
HTTP/1.1 303 See Other
instead of
HTTP/1.1 303
Additionally, one doesn"t really know which version of HTTP is being used,
so why potentially cause problems by trying to guess.
The specs say location headers must have a complete URI in them, not just
the path.
Lastly, you don"t want any output after the location header.
Later,
--Dan