sudo apt-get purge php7.0-common 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages will be REMOVED:
  php-apcu* php-fpm* php-gd* php-gettext* php-mbstring* php-mcrypt* php-mysql*
  php-pear* php-xml* php7.0* php7.0-cgi* php7.0-cli* php7.0-common*
  php7.0-curl* php7.0-fpm* php7.0-gd* php7.0-intl* php7.0-json*
  php7.0-mbstring* php7.0-mcrypt* php7.0-mysql* php7.0-opcache*
  php7.0-readline* php7.0-soap* php7.0-xml* php7.0-zip* phpmyadmin*
0 upgraded, 0 newly installed, 27 to remove and 83 not upgraded.