sudo update-alternatives --config php
sudo service nginx restart
sudo service php7.1-fpm or php7.2-fpm restart
alias setphp="sudo update-alternatives --config php;sudo update-alternatives --config phar; update-alternatives --config phar.phar; a2dismod php*.*;systemctl restart apache2"
Put the above alias in the
sudo nano ~/.bashrc
#After the above command just run this command
a2enmod php<Your Desired Version> # like, a2enmod php7.4
Now you can run command "setphp" from your terminal.