There are no php5 and php5-dev packages in Xenial. Only PHP 7.0. The package you are using is just leftover from development version of Xenial.
** Changed in: php5 (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1584537 Title: php-config5 --php-binary reports path to wrong php binary To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1584537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs