PHP

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

change php version ubuntu

$ sudo update-alternatives --config php
 or
$ sudo a2enmod php7.1(version)

php change version linux

Interactive switching mode
sudo update-alternatives --config php
sudo update-alternatives --config phar
sudo update-alternatives --config phar.phar

Manual Switching
From PHP 5.6 => PHP 7.1
Default PHP 5.6 is set on your system and you need to switch to PHP 7.1.

Apache:

$ sudo a2dismod php5.6
$ sudo a2enmod php7.1
$ sudo service apache2 restart

Command Line:

$ sudo update-alternatives --set php /usr/bin/php7.1
$ sudo update-alternatives --set phar /usr/bin/phar7.1
$ sudo update-alternatives --set phar.phar /usr/bin/phar.phar7.1
From PHP 7.1 => PHP 5.6
Default PHP 7.1 is set on your system and you need to switch to PHP 5.6.

Apache:

$ sudo a2dismod php7.1
$ sudo a2enmod php5.6
$ sudo service apache2 restart
Command Line:

$ sudo update-alternatives --set php /usr/bin/php5.6

change php version in ubuntu

sudo update-alternatives --config php
sudo update-alternatives --config phar
sudo update-alternatives --config phar.phar

change php version ubuntu

sudo update-alternatives --config php

change php version in linux

vim ~/.bashrc
alias phpchange=change_php

change_php(){
        CURRENT_PHP_VERSION=$(php -v | head -n 1 | cut -d " " -f 2 | cut -f1-2 -d"." 2>/dev/null)
        echo "Current PHP Version is ".$CURRENT_PHP_VERSION;
        sudo a2dismod php$CURRENT_PHP_VERSION;
        sudo a2enmod php$1;
        sudo update-alternatives --set php /usr/bin/php$1
        sudo service apache2 restart

}


and then run phpchange 7.0 // to switch to 7
make sure you need to have that version installed

change the php version in linux

sudo update-alternatives --set php /usr/bin/php7.2
sudo update-alternatives --set phar /usr/bin/phar7.2
sudo update-alternatives --set phar.phar /usr/bin/phar.phar7.2
sudo update-alternatives --set phpize /usr/bin/phpize7.2
sudo update-alternatives --set php-config /usr/bin/php-config7.2

change php version in ubuntu

$ sudo update-alternatives --set phar /usr/bin/phar5.6

change php version on ubuntu

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.

ubuntu change php version

sudo a2dismod php7.1
sudo a2enmod php5.6
sudo service apache2 restart
 #command Line
 sudo update-alternatives --set php /usr/bin/php5.6
 
$ sudo update-alternatives --set php /usr/bin/php7.1
$ sudo update-alternatives --set phar /usr/bin/phar7.1
$ sudo update-alternatives --set phar.phar /usr/bin/phar.phar7.1