I've got a production server running older websites running on a Debian Jesse machine with PHP package 5.3.3-7+squeeze26. I have a development machine set up with a newer PHP package (5.6.29-0+db8ul) running in VirtualBox. When I import one of the old websites and try to run it on the development machine, I get PHP errors like:
php Call-time pass-by-reference has been removed.
My development machine is running phpmyadmin and apache which, I assume, rely on the newer version of php. So what are my options for getting these older website running on the development machine?
a) Can I run two versions of php side by side on the machine and have this website run on the older version?
b) Should I uninstall current version of php on development machine and run it off an older version of php5? In this case, what do I do about apache2 and phpmyadmin? Do those have to be rolled back, too?
c) Should I just set up a new virtual machine with an old version of php? Though this is probably the best option and the one I'm leaning toward, I'm still curious to know if options a and b are possible.