How to get custom folder

Developing for Dolibarr
1

I want to get the “custom” folder.
After some research, I found two solutions:

  1. Make the $dolibarr_main_document_root_alt variable global.
  2. Use the $conf->file->dol_document_root[‘alt0’] variable.

Is it possible that there isn’t a more “explicit” variable (as in the case of DOL_DOCUMENT_ROOT)?

2

Why do you want to get the custom folder? where do you want to get it? inside Dolbiarr, outside? what protocol, …?

3

In the conf.php file you can set the custom folder (where all the custom modules are) using the
$dolibarr_main_document_root_alt
variable.
Writing my custom code I want to get this setting.