PHP5 on IIS 5.1 connecting to Oracle 8

Good Day,

I have a Win XP Pro machine with IIS 5.1 installed. I've installed PHP5, and confirmed that it is working with php_info(). Now, I would like to configure PHP so that I can connect to our Oracle 8 database, and am experiencing difficulties. In php.ini, I've uncommented the lines extension=php_oci8.dll and extension=php_oracle.dll, and ensured that extension_dir is pointing to the correct directory, c:\php\extensions. However, I still get the error:

PHP Warning: PHP Startup: Unable to load dynamic library 'c:\PHP\extensions\php_oci8.dll' - The specified module could not be found. in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library 'c:\PHP\extensions\php_oracle.dll' - The specified module could not be found. in Unknown on line 0

when the page loads. Can anyone show me where I may have went wrong? I've made sure that IIS has permissions on the directory, and the oracle client seems to be installed correctly. TIA to anyone who can help!

 

Update: I now believe that I had misconfigured my extension_dir command in PHP.INI

Since this problem, I've uninstalled PHP and IIS, and reinstalled. Now, I am again experiencing an issue with php_oci8.dll. The exact error message is:

PHP Warning: PHP Startup: Unable to load dynamic library 'c:\PHP\ext\php_oci8.dll' - The specified procedure could not be found. in Unknown on line 0

Now, I know that this isn't a problem with my PHP.ini file, because php_oracle.dll loads fine. So, I used Dependency Walker to profile the library, and I found that it called ANOTHER dll, OCI.DLL, and that THIS dll was having trouble with one of its functions. Maybe this is a shot in the dark, but can anyone help with this? Currently, I'm looking at search results for the function name at Microsoft...

 

WOOO HOOOO!!!!! I DID IT! I figured this one out! As I suspected, the OCI.dll file was to blame. I had been misinformed that the file version I had was acceptable. I had uninstalled the Oracle client, and after suffering the problem I initially started this thread for (could not load EITHER extension), I re-installed IIS and PHP (again) to find that the problem was not corrected. I went and got the latest version of OCI.dll and replaced it, and after weeks of fighting, everything's beautiful now!

Please forgive my gloating!