install php 8 ubuntu

# Ubuntu 20.04
# List existing PHP packages
dpkg -l | grep php | tee packages.txt

#Add ondrej/php PPA
sudo add-apt-repository ppa:ondrej/php # Press enter when prompted.
sudo apt-get update

#Install PHP 8.0 with CLI
sudo apt install php8.0-common php8.0-cli

#Additional extensions
sudo apt install php8.0- { bz2,curl,intl,mysql,readline,xml }

sudo apt install php8.0-cli php8.0-common php8.0-imap php8.0-redis php8.0-snmp php8.0-xml

 sudo apt install php8.0

sudo apt update
sudo apt install php php-cli php-fpm php-json php-pdo php-mysql php-zip php-gd  php-mbstring php-curl php-xml php-pear php-bcmath

sudo apt update
sudo apt install lsb-release ca-certificates apt-transport-https software-properties-common -y
sudo add-apt-repository ppa:ondrej/php