This looks to be the relevant upstream bug http://bugs.php.net/bug.php?id=53352 and commit: http://svn.php.net/viewvc?view=revision&revision=305698 that fixed it. I'm building and testing packages with that commit applied to verify it fixes the issue.
** Bug watch added: bugs.php.net/ #53352 http://bugs.php.net/bug.php?id=53352 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to php5 in ubuntu. https://bugs.launchpad.net/bugs/701765 Title: open_basedir breaks by restricting paths to files that should be allowed; Unknown: Failed opening required '/usr/share/phpmyadmin/index.php' (include_path='.') in Unknown on line 0 -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs