Package: php5-common Version: 5.6.24+dfsg-0+deb8u1 After uninstalling apache and most php packages from an installation, I get an email every 30 minutes from cron:
From: root@[...] (Cron Daemon) To: root@[...] Subject: Cron <root@[...]> [ -x /usr/lib/php5/sessionclean ] && /usr/lib/php5/sessionclean /usr/lib/php5/sessionclean: 34: /usr/lib/php5/sessionclean: php5: not found The leftover php packages are: $ dpkg -l *php* | grep ^ii ii php5-apcu 4.0.7-1 amd64 APC User Cache for PHP 5 ii php5-common 5.6.24+dfsg-0+deb8u1 amd64 Common files for packages built from the php5 source The installation has never had any package conflicts. This looks to me like the php5-common debian package requires an executable php5 to be present, but neither provides this executable nor depends on another package that provides it. Of course my personal solution is to also uninstall php5-common, but I think the missing dependency here should be addressed.
