Question How to change an existing Plesk php symbolic link on Ubuntu?

[PeopleInside]

Server operating system version

Ubuntu 22.04.5 LTS

Plesk version and microupdate number

Plesk Obsidian 18.0.67 21 January 2025

Ubuntu 22.04.5 LTS

# which php
/usr/bin/php

# ls -l /usr/bin/php
lrwxrwxrwx 1 root root 26 Mar 15  2024 /usr/bin/php -> /opt/plesk/php/8.3/bin/php

I installed php 8.4 in Plesk, how can I use also on SSH php 8.4?

 

[Raul A.]

The simplest approach is to:

export PATH=/opt/plesk/php/8.4/bin:$PATH

This will change the PHP version for the current session. However, if you set the PHP version to 8.4 for the website, phpenv should use that PHP version.

 

[PeopleInside]

This is a SSH command?
This will work only for the current SSH session and will be reverted?

if you set the PHP version to 8.4 for the website, phpenv should use that PHP version.

I think I'm not understanding.

 

[Raul A.]

Yes, it's an SSH command and it will affect only the SSH session it was run in.
Export will update the SSH environment. The PATH environment variable designates the folders where the shell will look for binaries, including php. By prepending the location of PHP 8.4 in $PATH, php will be found in /opt/plesk/php/8.4/bin, instead of /usr/bin.
You can make it persistent by adding the command in ~/.profile

Plesk has a feature which sets the CLI PHP version to the PHP version set for the corresponding website in Plesk. If you change the website to PHP 8.4 and ssh to the server using the website's system, user

php -v

should show 8.4, regardless of where /usr/bin/php links to.