How does PHP connect to ORACLE and retrieve data?

PHP connects to ORACLE and extracts data from my environment. APACHE2.2 & nbsp; php5.2.17 & nbsp; win2003 & nbsp; has installed oracle & nbsp; 9i & nbsp; database 1, how to connect, My PHP. in INI, how does extensio PHP connect to ORACLE and retrieve data?
In my environment, APACHE2.2 php5.2.17 win2003 has installed the oracle 9i database.

1. how to connect, My PHP. INI removed extension = php_oci8.dll, but in PHPINFO still can not see the extension of OCI8, looked for said to download a instantclient-basic-nt-11.2.0.3.0 and then added to the system variables. I tried it, but I still cannot.
$ Link = oci_connect ('user', 'pass', 'instance') or die ('connection failed'); // oci_connect (user, password, instance name) don't you know?

The page prompts Fatal error: Call to undefined function oci_connect ()



2. how to obtain the result set if it is connected to ORACLE. It seems that the PHP Manual does not contain ORC instructions.
Generally, mysql uses mysql_fetch_assow (mysql_query ('select * from number') to retrieve data, and the corresponding oracle should also have such a function. Share:
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I don't know. I can just remove the semicolon before extension = php_oci8.dll.
It is strange that your Loaded Configuration File is empty.