PHP 7 and apache displays plain text and cannot be restarted

Solution 1:

Run the following command in terminal

sudo apt-get install libapache2-mod-php

sudo apt install php libapache2-mod-php
sudo apt install php7.0-mbstring
sudo a2dismod mpm_event
sudo a2enmod mpm_prefork
service apache2 restart

after that

gedit /etc/apache2/apache2.conf

add the following line

Include /etc/phpmyadmin/apache.conf

service apache2 restart

libapache2-mod-php server-side, HTML-embedded scripting language (Apache 2 module) so we have to add this