class is not working on a "chrooted" environment

Eg. like the apache directive: php_admin_value open_basedir "/path/to/sitedir/"; due to the file_exists, copy, imagecreatefrom* functions which want to operate on the source file which is outside from this dir (mostly in /tmp on linux systems).

A possible solution could be that the user must create a temp dir in the open_basedir, first the class move the file to that temp dir, then process that file, after processing it deletes the temp file.

And perhaps it can rely on a class property, like: string chrootdir ...

Thank you for the information.

I will check that out, and implement the solution you suggest.

C.