I'm working on a dev sandbox which will mostly be used for integration testing.
I'd like to be able to run legacy versions of things like the magento cart platform which are compatible with older versions of php and so on.
I'd really like to be able to concurrently install several versions of PHP and then call them at the top of the file so it knows which version to evaluate scripts with, but I have no idea where to start configuring something like that.
Any suggestions would be hugely appreciated!