Instalacja php 7.2

# apt install ca-certificates apt-transport-https

wget -q https://packages.sury.org/php/apt.gpg -O- | apt-key add -

# echo "deb https://packages.sury.org/php/ stretch main" | 
  sudo tee /etc/apt/sources.list.d/php.list

# apt update
# apt install php7.2

# a2dismod php7.0
# a2enmod  php7.2