The MAX_FILE_SIZE item cannot specify a file size
greater than the file size that has been set in the upload_max_filesize ini-setting.
The default is 2 Megabytes.
If memory limit is enabled, larger memory_limit may be needed. Make
sure to set memory_limit
large enough.
If max_execution_time
is set too small, script execution may be exceeded the value. Make
sure to set max_execution_time large enough.
If post_max_size is set too small, large files
cannot be uploaded. Make sure to set
post_max_size large enough.
Not validating which file you operate on may mean that users can access
sensitive information in other directories.
Please note that the CERN httpd seems to strip off everything
starting at the first whitespace in the content-type mime header
it gets from the client. As long as this is the case, CERN httpd
will not support the file upload feature.
