remove php and install all the php extensions

 sudo apt-get remove php

php -v

sudo apt-get remove PHP

dpkg -l | grep php

sudo apt-get purge php*

sudo apt-get autoremove

dpkg -l | grep php

php -v

sudo rm -rf /etc/php/

2011 sudo apt-get update

2012 sudo add-apt-repository ppa:ondrej/php

2013 sudo apt-get update

2014 sudo apt-get install php8.1

2015 dpkg -l | grep php

2016 php -i | grep mbstring

2017 sudo apt-get install php8.1-mbstring

2018 php -v

2019 php -m | grep mbstring

2020 php -i | grep mbstring

2021 sudo apt-get install php-xml

2022 sh lstart-php-my-admin.sh

2023 sudo apt-get install php php-cli php-fpm php-json php-common php-mysql php-zip php-gd php-mbstring php-curl php-xml php-bcmath php-json php-imagick

2024 php -v

sudo apt-get install php php-cli php-fpm php-json php-common php-mysql php-zip php-gd php-mbstring php-curl php-xml php-bcmath php-json php-imagick