I just want to share how i managed to connect to oracle-xe with php using WampServer Version 2.2 on windows 7 64 bit after 4 hours of struggeling
First installed oracle-xe 11g.
Then followed the instructions in this article: http://www.codeproject.com/Tips/523381/PHP-with-Oracle-g-on-Windows-bit
untill step 6.
then used last part of this article: Installing Oracle Database, PHP, and Apache on Microsoft Windows XP
from where it says "phpinfo.php"
that did the trick.
regards Marcel
twitter.com/marcelscholte