Overview
By default, uploaded files are stored under /tmp, which is outside the pivot root of your account’s filesystem. These files may be accessed only by PHP. In certain circumstances, you may want to keep a copy of uploaded files for debugging.
Solution
Upload path can be adjusted by changing PHP’s tunable setting: upload_tmp_dir. Use the value within the control panel from Account > Summary > Web > HTTP Base Prefix + /tmp.
Example
If HTTP Base Prefix is /home/virtual/site125/fst, then use the following value for upload_tmp_dir is valid in a .htaccess file:
php_value upload_tmp_dir /home/virtual/site125/fst/tmp