OCI8 Memory Leak?

Hi folks-   I am building an application which uses OCI8 functions (abstracted with PEAR::DB) to perform queries against an Oracle 9i database. Here's my platform info:   Solaris 8 (SunOS 5.2) on a Sun Ultra II workstation Oracle 9i PHP 4.3.5RC2-dev Apache 1.3.29   Here's my problem: Everything works well, but over time the Apache httpd processes start to take huge amounts of memory: for instance: I checked this morning and each of the apache processes running were using over 125MB per instance, and the server had slowed to a standstill. The processes upon restart use between 15-20MB per instance.   Is there something in the Oracle client configuration or in php/pear that can lead to this sort of memory problem?   Any help is greatly appreciated.   Shawn