Issue Using old php versions in the latest version of Plesk (5.4,5.6 and etc.)

[idadash]

Server operating system version

Rocky Linux 8

Plesk version and microupdate number

18.0.58

I'm using the latest version of Plesk. One of my websites still uses PHP 5.4. Some other server management tools offer updated older versions of PHP to not inconvenience their users. However, I haven't been able to do this with Plesk. I browsed the forum and read in some similar topics that it's not possible to install old PHP versions through the interface and they must be installed manually. I tried a manual installation, but when I choose this version from the interface, my site starts receiving a 500 error. I followed the steps exactly, but still couldn't resolve this error. I'm asking for your help with this. I understand that this is related to security, but by choosing to use this, I'm already accepting the risk.
My OS: Rocky Linux 8

 

[Martin Dias]

If it is not available by the OS, then you would need to install it manually:

https://support.plesk.com/hc/en-us/articles/12377508651415--How-to-add-a-custom-PHP-version-in-Plesk-for-Linux

 

[fon78]

I'm using the latest version of Plesk. One of my websites still uses PHP 5.4. Some other server management tools offer updated older versions of PHP to not inconvenience their users. However, I haven't been able to do this with Plesk. I browsed the forum and read in some similar topics that it's not possible to install old PHP versions through the interface and they must be installed manually. I tried a manual installation, but when I choose this version from the interface, my site starts receiving a 500 error. I followed the steps exactly, but still couldn't resolve this error. I'm asking for your help with this. I understand that this is related to security, but by choosing to use this, I'm already accepting the risk.
My OS: Rocky Linux 8

I have the same problem, if you can solve it, I would appreciate the solution. I have followed all the steps but when I open any php file in the installed version I get error 500.

 

[BenRye]

Did this get resolved, and if so how?

 

[fon78]

I solved it by installing a previous version through the console, the problem I used to have is that I had to install FPM and CGI of the version in question.

 

[Change Maker]

Can you let me know how you did that through the Console? I need Vs 5.4 for an old Joomla Site that I want to upgrade.

 

[ChristophRo]

if it runs on PHP 5.4 it will also run on PHP 5.6 - trust me on this
and for PHP 5.6 there are plenty of easy methods to get it running on a Plesk server (at least for Debian and Ubuntu)

 

[Change Maker]

Thanks. I think I heard of other people having many problems after putting it on to the server. I'm not sure I've got the experience to overcome things, if that happens. ?

But what are the instructions for setting it up on the Console, which I think you mean is from the Command Line. I use Putty to get on mine.

 

[ChristophRo]

For Debian12 you can follow the instructions in the old post of mine: - Question - How to install PHP 5.6.40 on Plesk 18.0.58 and Debian 12.4?

For Ubuntu you would need to adapt part one (adding repositiory) according to: ***** The main PPA for supported PHP versions with many PECL ext... : Ondřej Surý

Other Distributions are not my forte and so I will not comment on them...

 

[Change Maker]

Ok Thanks. I'm on Obsidian. So I'm not going to try that route for now. I'll need someone to test my site and upgrade on a different server. I think that's my only option. IF I want to be secure.