extension in RH9

Hello All! I installed Oracle 9i and it's working perfectly. I use a linux server to connect using a client in this other machine. I need to put HTTPD 2.0.40, PHP 4.2.2, Oracle 9i working together on a RedHat 9... Hardly, searching on the web, I could compile the oracle.so module using the same version of php and httpd I have. It compiled with no errors and I got the oracle.so and oracle.la on modules directory. Looking for what I should do next, I read .ini of PHP on how to make that module works. So, as it says, a copied the module in the extension_dir (/usr/lib/php4) and created a oracle.ini in /etc/php.d. Even when I restart the service or restart the computer I still get the same error message: Fatal error: Call to undefined function: ocilogon() in /var/www/html/teste_db.php on line 18 I compiled the module, in this case, because I would like to let apache with all modules that it is installed now. Am I forgeting someting here to make it works? Somebody could help me with it??? Thanks people! Maurício