//list all version first

ls /usr/local/lsws/lsphp*

​

ln -sf /usr/local/lsws/lsphp74/bin/lsphp /usr/local/bin/php 

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

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

​

# 1. Create file .bash_profile in the root

# 2. Paste the followinng line to it:

​

# Plesk

export PATH=/opt/alt/php83/usr/bin:$PATH

​

# Direct Admin

export PATH=/usr/local/php83/bin:$PATH

​

# 3. Run the following command to update the file

. ~/.bash_profile

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

// old version

sudo a2dismod php7.*

 // new version

 sudo a2enmod php8.2

#¿Necesitas cambiar de version? Sigue los siguientes pasos

​

#Instalamos el softwar necesario

sudo apt install software-properties-common gnupg2 -y

​

#Añadimos el repositirio de donde podremos descarga php

sudo add-apt-repository ppa:ondrej/php

​

#Actualizamos para que se realicen los cambios

sudo apt update -y

​

#Instalamos la version que necesitamos php[version]

sudo apt install php8.0 

There are two methods to switch php versions on the command line ubuntu.

​

Run each command one by one and input the number of the php version you want to change.

​

**Method 1**

​

    sudo update-alternatives --config php

    sudo update-alternatives --config phar

    sudo update-alternatives --config phar.phar

    sudo service apache2 restart

​

**Method 2** 

​

If you want to change PHP 5.6 to 7.4 just run the below codes.

​

    sudo a2dismod php5.6

    sudo a2enmod php7.4

    sudo service apache2 restart

​

If you want to change from PHP 7.4 to 5.6 run the below codes.

​

    sudo a2dismod php7.4

    sudo a2enmod php5.6

    sudo service apache2 restart

​

For more information follow this link https://slaford.com/laravel/how-to-switch-php-versions-on-command-line-ubuntu/

There are two methods to switch php versions on the command line ubuntu.

​

Run each command one by one and input the number of the php version you want to change.

​

**Method 1**

​

    sudo update-alternatives --config php

    sudo update-alternatives --config phar

    sudo update-alternatives --config phar.phar

    sudo service apache2 restart

​

**Method 2** 

​

If you want to change PHP 5.6 to 7.4 just run the below codes.

​

    sudo a2dismod php5.6

    sudo a2enmod php7.4

    sudo service apache2 restart

​

If you want to change from PHP 7.4 to 5.6 run the below codes.

​

    sudo a2dismod php7.4

    sudo a2enmod php5.6

    sudo service apache2 restart

​

For more information follow this link https://slaford.com/laravel/how-to-switch-php-versions-on-command-line-ubuntu/

sudo nano /etc/apache2/apache2.conf