Open a persistent Oracle connection
(PHP 4, PHP 5 <= 5.0.5)
Code Examples / Notes » ora_plogon
When using the persistent login, php obviously does not disconnect, and therefore does not commit any changes you have made to the database. This results in Oracle either locking up, or returning ORA-01554 (Out of transaction slots in transaction tables).
To resolve this, be sure to end your page with ora_commit($connection) (passing in your $connection id).