FYI:
With my current life Backlight 1.2.2 site, my Bluehost server is running PHP 5.2. As stated in Matt’s Backlight 2.0 install video, the minimal PHP version for Backlight is now 5.6. Bluehost only gives me version of 5.2 or 7.1/ 7.2 or 7.3. For my backlight 3.0 test site I had to switch to 7.x. However, my current life website was broken and I had to switch back to 5.2.
I would create a subdomain for your tests for which you can set a separate PHP version number.
Daniel, thanks for the suggestion. To get familiar with 3.x I am currently running Backlight 3.x in a sub-folder. I opted for a sub-folder rather than a subdomain for simplicity reasons because I plan to delete the test site after I am familiar with 3.x.
Would your suggestion work as well for a sub-folder?
I only suggested subdomain because you mentioned the conflict with php versions. You can do your tests in a subdomain or subfolder. You would discard either one once your main site is up and running.
I did not find a way to configure two concurrent PHP Versions with my “Subfolder” approach on the Bluehost server. Do I have to use the “Subdomain” approach to create two separate PHP versions?
I suggested to use a subdomain because there you can set separate php versions.
Thank you Daniel.