UpdateToday I got again problem with PHP 7 running despite I have disabledphp7.0
apache module:phpinfo
was showing php 7 using fastCGI ...... So if after you follow the below instructions you face this situation, you may need to disable theproxy_fcgi
apache module:
sudo a2dismod proxy_fcgi proxy; sudo service apache2 restart
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php7.0 php5.6 php5.6-mysql php-gettext php5.6-mbstring php-xdebug libapache2-mod-php5.6 libapache2-mod-php7.0
2. Switch PHP version:
From php5.6 to php7.0 :
Apache:
sudo a2dismod php5.6 ;
sudo a2enmod php7.0 ;
sudo service apache2 restart
sudo ln -sfn /usr/bin/php7.0 /etc/alternatives/php
from php7.0 to php5.6:
Apache:
sudo a2dismod php7.0 ;
sudo a2enmod php5.6 ;
sudo service apache2 restart
sudo ln -sfn /usr/bin/php5.6 /etc/alternatives/php