Freeing Pear DB resources

Hello, I had some questions about freeing Pear DB resources and connections. 1) Although there is a disconnect() method to free the DB connection, it appears in monitoring my MySQL instance that connections are freed automatically after the web server has executed the script and returned the result. So my application has a basic pattern of create a connection, do something with the database, and forward to the result view, can I just leave it up to PHP to release the connections? Manually freeing them in the presence of error checking with no concept of a "finally" block could prove tedious and error-prone. 2) Most of my queries are done through the get* family of functions which free result resources for you. I do use the query method directly in a few instances. Do I need to manually call DB_Resullt::free() myself in this instances, or will Pear/PHP clean those up also when the script execution ends? Thanks, Stanford S. Guillory