PHP and queries in the CB List Description using DirectPHP ore ARI smart content does not work / or using what ?

I have Joomla 3.1.5 with CB 1.9 and
“DirectPHP Version 3.0” extensions.joomla.org/extensions/core-enhancements/coding-a-scripts-integration/custom-code-in-content/4470
ore: ARI smart content: www.ari-soft.com/vmchk/Joomla-Components/ARI-Smart-Content/Detailed-product-flyer.html

I have several lists and in each of them I have the
Title and the Description
I would like to generate the description with php using a query
Ore queries mixt with text. If possible using the listid as parameter in the queries
(similar to queryfields)

Now I tested the following things:
- I inserted in a article {?php echo "Hallo World" ; ?} and it displays: "Hallo World" (works perfect!)
- I inserted in Description of a Content Category {?php echo "Hallo World" ; ?} an it displays: "Hallo World" (works perfect!)

- But if I insert {?php echo "Hallo World" ; ?} in the description of a CB List then I get: {?php echo "Hallo World" ; ?}
Can you help me?
Is there an other way in CB?
Thanks

CB Userlists do not process Joomla Content Plugins so that's not going to work. Why do you need PHP in a Userlist description? What specifically are you trying to add to it?

We also do not support your usage. It's dangerous to be executing PHP like that and you've just created a vulnerability on your site. What happens if someone gets into an account that can create frontend articles? They could easily inject PHP straight into your site to drop all your Joomla tables.

I try to explain:
I have this homepage: www.ifsda.org
Here I have about 1200 user and they are in about 20 countries.
Now I have as example a List of the association in Switzerland:
www.ifsda.org/index.php?option=com_comprofiler&task=usersList&listid=9

on top of the list I like the address and other information’s like:
www.ifsda.org/add/i/acc.php?asscd=CH

All the information’s in the Header relate to users and they are in the database saved as users.
(including the associations itself)
See also the List: Dealers assotiation: www.ifsda.org/index.php/component/comprofiler/userslist/Associations?Itemid=552
(see also the field “Members” as a nice use of a query field)

In that case I suggest creating a custom module that pulls and displays your needed information then add it to your CB Userlist. Alternative is to use your PHP script and use it in a custom html module then add that module to your userlist. Another alternative is you could use CB Auto Actions PHP action to execute whatever code you need then tell it to echo your result on the onBeforeDisplayUsersList trigger.