Answers for "ubuntu change php version 7.4 to 7.3"

change php version ubuntu

//In ubunutu
Default PHP 7.1 is set on your system and you need to switch to PHP 5.6

$ sudo a2dismod php7.1
$ sudo a2enmod php5.6
$ sudo service apache2 restart
  
sudo update-alternatives --set php /usr/bin/php5.6

ubuntu 16 upgrade php 7.0 to 7.4

sudo apt install -y php7.4 php7.4-cli php7.4-common php7.4-fpm