Same problem here but I'm running Debian 8.1
Package: libapache2-mod-php5
Version: 5.6.12+dfsg-0+deb8
Architecture: amd64
Configuring libapache2-mod-php5 (5.6.12+dfsg-0+deb8u1) ...
There is more than one MPM loaded. Do not proceed due to undefined results
There is more than one MPM loaded. Do not proceed due to undefined results
There is more than one MPM loaded. Do not proceed due to undefined results
/var/lib/dpkg/info/libapache2-mod-php5.postinst: 291: [: !=: unexpected
operator
apache2_switch_mpm prefork: No action required
apache2_invoke: Enable module php5
In my case apache was running and as I can see no invoke-rc.d was called
(last line)
Thanks in advance developers!