13
down vote
The problem is because some configuration files are deleted, you have to reinstall it.

REINSTALL APACHE2:

To replace configuration files that have been deleted, without purging the package, you can do:

sudo apt-get -o DPkg::Options::=»–force-confmiss» –reinstall install apache2
To fully remove the apache2 config files, you should:

sudo apt-get purge apache2
which will then let you reinstall it in the usual way with:

sudo apt-get install apache2
Purge is required to remove all the config files – if you delete the config files but only remove the package, then this is remembered & missing config files are not reinstalled by default.

Then REINSTALL PHP5:

apt-get purge libapache2-mod-php5 php5 && \
apt-get install libapache2-mod-php5 php5

https://geekytheory.com/tutorial-raspberry-pi-crear-servidor-web

https://www.stewright.me/2016/03/turn-raspberry-pi-3-php-7-powered-web-server/

https://alteageek.com/2016/12/30/como-instalar-phpmyadmin-en-raspberry/