I recently migrated a site from an old shared hosting environment to my new server with Digital Ocean that I've setup as a LEMP stack. I'm having an issue with certain parts of the site and the biggest difference between the old server and the new server is the version of PHP that's being used, so I'd like to try matching those if possible. The old server used PHP 5.3.27 and my new server uses PHP 5.5.3. Is there any way for me to get this site running on PHP 5.3.27? Maybe I could downgrade it … or maybe I could have both versions installed and just have the site use the old one? I'll take any suggestions at this point. Thanks!