Today I came to work. It being Monday and all, seeing that PHP stopped talking to Oracle (which it was doing wonderfully until Friday), and that all reports are hence broken (which were not until Friday) is not a good start of the week. Add the cryptic Oracle errors, and you're set for nerve wrecking debugging.
There are times, when you need to make your app(s) work in a corporate environment. And when you combine corporate with databases, you usually end up with Oracle. In my case, I need to make a connection from PHP 5.3 ( CentOS default ) to Oracle 11g (on a different host). With some luck, this will help others trying the same.