coexistence of multiple php versions on debian stretch

switchphpto

#!/bin/bash

# references:
# https://tecadmin.net/switch-between-multiple-php-version-on-debian/
# https://pehapkari.cz/blog/2017/03/27/multiple-php-versions-the-easy-way/
# https://github.com/leymannx/apache-multiphp
# https://deb.sury.org/

VERSION=$1

# unmount all php apache modules
sudo a2dismod php5.6 php7.0 php7.2 php7.3
# mount the needed apache php module
sudo a2enmod php"$VERSION"
# restart apache
sudo service apache2 restart
# fix system symlinks
sudo update-alternatives --config php