we meet some troubles with our internal application, we used Apache2 + PHP5, and the application uses adodb to connect to the DB,
the problem is that we are limited to 20 simultaneous user connection for our application, it's enought regarding the traffic, but some oracle connections seems not be released by php, and after a while user have ORA-02391 errors returned,
i ask to my DBA and some connections have been instinciate for 2 days and not re-used for a while...
i guess in a php application, all connection should be released when the page is send back to the client ?
what i can do to release/force 'properly' the connection ? should the DBA do something ? like set a session timeout parameter ?

Thanks a lot for your help