I have a Ubuntu 14 server with installed virtualmin with php 5.5 now I want to install php 5.3 also on same server (some WordPress plugins not working properly on php 5.5). Is there any way to do that?
You can do PHP in CGI/FastCGI mode and choose with PHP version to use for virtualhost. You can contact me at Skype secom.support and I`ll help you.
To be honest personally I never tried installing two separate versions of PHP on the same machine, however, while searching for the solution I come across with the following URL. I hope there you will find the possible answer to your need.
Might I suggest asking the plugin developer to update their code so it works with the newer version of PHP? There should be no reason for it NOT working - unless they're using deprecated functionality no longer supported in PHP 5.5+
Thank you all for your suggestion, I think its better upgrade php code, then I can avoid many difficulties.