How to Switch between Multiple PHP Version on Ubuntu

How do I switch between PHP versions?
How do I run multiple PHP versions in Ubuntu?
How do I switch to PHP 8 in Ubuntu?
Can I run several versions of PHP at the same time?
How do I switch between multiple PHP versions in Windows?
How do I select PHP version in Ubuntu?
How can I use two versions of PHP?
How do I remove old versions of PHP?
How can I check my PHP version?
Does Ubuntu 20.04 have PHP?
How do I upgrade PHP to 8?
How do I update PHP to 8?

How do I switch between PHP versions?

You can do sudo update-alternatives --config php to set which system wide version of PHP you want to use. This makes your command line and apache versions work the same. You can read more about update-alternatives on the man page. That's it you can now easily switch form PHP7 to PHP 5.6!

How do I run multiple PHP versions in Ubuntu?

How to Run Multiple PHP Versions with Apache on Ubuntu 20.04 / 18.04 / 16.04. Prerequisites. Add Repository. Install PHP. Configure Apache. Virtual Hosts Method. htaccess Method. Test PHP. 34 replies.
sudo service php5.6-fpm start.
sudo service php5.6-fpm start.

How do I switch to PHP 8 in Ubuntu?

Step 1: Add the Ondřej Surý PPA Repository. ...
Step 2: Install PHP 8.0 with Apache on Ubuntu. ...
Step 2: Install PHP 8.0 with Nginx on Ubuntu. ...
Step 4: Install PHP 8 Extensions in Ubuntu. ...
Step 5: Verify PHP 8 Installation in Ubuntu.

Can I run several versions of PHP at the same time?

Yes we can run several versions of php. To do that we must have to check the INSTALL file, if it is included in PHP source distribution.

How do I switch between multiple PHP versions in Windows?

Move the php directory from the version you downloaded to XAMPP install directory. Rename it so it includes the PHP version. Such as C:\xampp\php-5.4.
...

Now in C:\xampp\apache\conf\extra directory rename httpd-xampp. conf to httpd-xampp. ...
Edit httpd-xampp. conf. ...
You now need to edit php. ini for the two versions.

How do I select PHP version in Ubuntu?

We will also explain how to set the default version of PHP to be used on the Ubuntu system.
...
Install PHP (5.6, 7. x, 8.0) on Ubuntu Using PPA

First start by adding Ondřej Surý PPA to install different versions of PHP – PHP 5.6, PHP 7. ...
Next, update the system as follows.

How can I use two versions of PHP?

Use multiple PHP versions at the same time in Apache

Apache2 Installation: Install Apache2 web server from the official repository. ...
PHP Installation: Install PHP we will use PPA Repository. ...
Apache Configuration: Now we are going to configure multiple PHP versions with apache. ...
PHP-FPM Configuration:

How do I remove old versions of PHP?

Remove old PHP versions

With new PHP 7.3 installed, you can remove your old PHP versions if you want. apt purge php7. 2 php7. 2-common # Change 7.2 with whatever current version you have.

How can I check my PHP version?

1. Type the following command, replacing [location] with the path to your PHP installation. 2. Typing php -v now shows the PHP version installed on your Windows system.

Does Ubuntu 20.04 have PHP?

At the time of writing, the default Ubuntu 20.04 repositories include PHP 7.4 version. We'll install PHP from the ondrej/php PPA repository. Before upgrading to or installing PHP 8, make sure that your applications support it.

How do I upgrade PHP to 8?

Update PHP Version to PHP 8 In XAMPP On Windows

Step 1 - Open XAMPP Control Panel. Open the XAMPP Control Panel as shown in Fig 1.
Step 2 - Open Apache Config Panel. Click the Config Button next to apache. ...
Step 3 - Open Config File. ...
Step 4 - Update PHP Installation Path. ...
Step 5 - Save Configuration and Start Apache. ...
Step 6 - Verify PHP.

How do I update PHP to 8?

Upgrade to PHP 8 for Apache

You need to disable the old PHP version and enable the new PHP version 8. This command will disable the PHP 7.4 module. This command will enable the PHP 8 module. Now you need to restart Apache for the changes to take effect.