cannot connect with oracle8i

i am still in problem trying to connect oracle8i with php4.what i have done is that i install php4 as a module of apache server and also oracle at that server. that means i can run php program by that apache server. and can use oracle with sqlplus which is installed at that apache server. Now,to connect with oracle8i i am just writing a php proram and run it with apache server.but it can find no connection function written in that file. for example i use $connection = OCILogon ("scott", "tiger"); but the output is Fatal error: Call to undefined function: ocilogon() in f:\oracle\apache\apache\htdocs\email.php on line 6. now plz tell me a solution . __________________________________ Do you Yahoo!? Yahoo! Mail - More reliable, more storage, less spam http://mail.yahoo.com