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sudo apt -y install apache2 libapache2-mod-php7.2 php7.2 php7.2-cli php7.2-common php7.2-curl
sudo apt -y install php7.2-gd php7.2-jso php7.2-mbstring php7.2-mysql php7.2-opcache php7.2-readline php7.2-xml php7.2-zip php7.2-intl

apt-cache search php | grep php7.

sudo apt-get install software-properties-common                                                
sudo LC_ALL=de_DE.UTF-8 add-apt-repository ppa:ondrej/php                                      
sudo apt-get update  
sudo apt -y install apache2 libapache2-mod-php7.2 php7.2 php7.2-cli php7.2-common php7.2-curl
sudo apt -y install php7.2-gd php7.2-jso php7.2-mbstring php7.2-mysql
sudo apt -y install php7.2-opcache php7.2-readline php7.2-xml php7.2-zip php7.2-intl
sudo apt -y install php7.2-mysqli
sudo apt-get install php7.2-mbstring

CAVEATS:
1. If you are using php-gearman, you need to add ppa:ondrej/pkg-gearman
2. If you are using apache2, you are advised to add ppa:ondrej/apache2
3. If you are using nginx, you are advised to add ppa:ondrej/nginx-mainline
   or ppa:ondrej/nginx

PLEASE READ: If you like my work and want to give me a little motivation, please consider donating regularly: https://donate.sury.org/

WARNING: add-apt-repository is broken with non-UTF-8 locales, see
https://github.com/oerdnj/deb.sury.org/issues/56 for workaround:

# LC_ALL=C.UTF-8 add-apt-repository ppa:ondrej/php
 More info: https://launchpad.net/~ondrej/+archive/ubuntu/php