Update multiple versions of PHP

Hello,

• Debian 4.9.168-1+deb9u4 (2019-07-19) x86_64
• ISPConfig Version: 3.1.14p2 single
• Nginx

How to update all PHP versions and keep the default PHP version of ISPConfig?
I installed a few days ago the management of several versions of PHP. I installed the PHP 7.0, 7.1, 7.2 and 7.3 versions. The default PHP version of ISPConfig is 7.0.
To install PHP versioning, I followed the tutorial:
How to install PHP 7.x as PHP-FPM & FastCGI for ISPConfig 3.1 with Debian 8 and 9. https://www.howtoforge.com/tutorial...-debian-8-and-9/#important-step-for-cron-jobs

 

You can switch to default php after an update. Try reading this for switching php version: https://tecadmin.net/switch-between-multiple-php-version-on-debian/

 

Thank. I had some concerns, because during a previous installation of multiple PHP versions with a bad tutorial, the update has replaced the default version by version 7.3.
Here, impeccable, I do not need to reload the server snapshot. Everything worked fine except for the following points that have not been updated:

What to do ?

 

I think this is the normal behaviour after the multiple php update, so you may want to restore your default php by switching back to it as I posted earlier.

 

1. I did it right. I had once taken a bad tutorial to install the multiple PHP version. With the right tutorial, thanks Till and Ahrasis, it works.
2. How to proceed for what is left of the update?

 

Do

Code:

apt-get dist-upgrade

 

Your answer allowed me to find that it was the correct method, but it also had to restart the server. Thanks, Taleman.