PEAR shutdown function doesn't rollback transactions

Hi, I'm using PEAR to start transaction for database conections. While reading in to this I saw the warning issued on the page below... Now I saw that the registered PEAR shutdown function does not include any rollback functionality... Is this something that should be done in future releases? I noticed that the PEAR class does record the number of transactions started... Or am I missing the point entirely and should I implement something in my own classes. (keep track of if any transactions have started and shutting them down if they were not rollback or commited. Alternatively I could use non persistent db connection... Thx for any thoughts. Bas http://www.php.net/manual/en/features.persistent-connections.php "There are a couple of additional caveats to keep in mind when using persistent connections. One is that when using table locking on a persistent connection, if the script for whatever reason cannot release the lock, then subsequent scripts using the same connection will block indefinitely and may require that you either restart the httpd server or the database server. Another is that when using transactions, a transaction block will also carry over to the next script which uses that connection if script execution ends before the transaction block does. In either case, you canuse register_shutdown_function() to register a simple cleanup function to unlock your tables or roll back your transactions. Better yet, avoid the problem entirely by not using persistent connections in scripts which use table locks or transactions (you can still use them elsewhere)."