Comment 5 for bug 994194

JazZ, this is extremely confusing.

Can you install php5-cli and run 'php -i | grep extension_dir' ?

On my 12.04 system, it shows:

extension_dir => /usr/lib/php5/20090626 => /usr/lib/php5/20090626

If that shows the same, can you place a file in your webroot with the content '<?php phpinfo();'

And look at what it says extension_dir is set to? Mine is also set to the same dir.

Also, perhaps you have modified config files in /etc/php5. You can check that with the 'debsums' package. Install it, and then run

debsums -e php5-common
debsums -e libapache2-mod-php5
debsums -e php5-pgsql