PUT method support has changed between PHP 3 and PHP 4.
In PHP 4, one should use the standard input stream to read
the contents of an HTTP PUT.
注: All documentation below applies to PHP 3 only.
PHP provides support for the HTTP PUT method used by
clients such as Netscape Composer and W3C Amaya. PUT requests
are much simpler than a file upload and they look something
like this:
This would normally mean that the remote client would
like to save the content that follows as: /path/filename.html
in your web tree. It is obviously not a good idea for Apache
or PHP to automatically let everybody overwrite any files in
your web tree. So, to handle such a request you have to first
tell your web server that you want a certain PHP script to
handle the request. In Apache you do this with the Script
directive. It can be placed almost anywhere in your Apache
configuration file. A common place is inside a
Directory block or perhaps inside a
Virtualhost block. A line like this would do the
trick:
This tells Apache to send all PUT requests for URIs that
match the context in which you put this line to the put.php
script. This assumes, of course, that you have PHP enabled
for the .php extension and PHP is active.
Inside your put.php file you would then do something
like this:
This would copy the file to the location requested by
the remote client. You would probably want to perform some
checks and/or authenticate the user before performing this
file copy. The only trick here is that when PHP sees a
PUT-method request it stores the uploaded file in a temporary
file just like those handled but the
POST-method. When the request ends, this temporary file
is deleted. So, your PUT handling PHP script has to copy that
file somewhere. The filename of this temporary file is in the
$PHP_PUT_FILENAME variable, and you can see the suggested
destination filename in the $REQUEST_URI (may vary on
non-Apache web servers). This destination filename is the one
that the remote client specified. You do not have to listen
to this client. You could, for example, copy all uploaded
files to a special uploads directory.