php 4.7 upgrade

php4.7.sh

# setup sury.org repository
apt-get install apt-transport-https -y
wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg
echo "deb https://packages.sury.org/php/ stretch main" | tee /etc/apt/sources.list.d/php.list

# install php7.4 modules
apt-get install -y php7.4-{bcmath,bz2,intl,gd,mbstring,mysql,zip}
# install apache module
apt-get install libapache2-mod-php7.4

apt-get update

a2dismod php7.0         # disable previous apache module version
a2enmod php7.4          # enable php7.4 apache module

apt upgrade             # upgrade packages
apt autoremove          # remove obsolete packges

service apache2 restart # restart apache