upload tmp dir

[offline]

How its possible to change the upload_tmp_dir on the fly (within a script)?

[whoisgregg]

I don't believe it's possible to change it within a script. Namely because by the time the script executes, the file has already been uploaded and placed in the tmp dir.

The PHP manual page for handling file uploads [us3.php.net] mentions (my bold):

Files will, by default be stored in the server's default temporary directory, unless another location has been given with the upload_tmp_dir directive in php.ini. The server's default directory can be changed by setting the environment variable TMPDIR in the environment in which PHP runs. Setting it using putenv() from within a PHP script will not work.