DevOps, CI/CD and Automation

Hi, and thanks in advance.

I've a oracle server which is in *192.168.0.140:8080/apex* and name of database is prueba.
When i try connect, use oci_connect('user','password',*$url* ), where *$url* is a combination of many url that i used for get connection between php and oracle. for example :
//192.168.0.140
//192.168.0.140:8080
//192.168.0.140:8080/apex
//192.168.0.140:8080/prueba

My web server is in a diferent machine that my oracle server.
I've used Windows XP + Apache 2.2 + php 5.2.12 + Oracle Instant Client , but i never get connection.
can i help me?

thanks.