Now that php7 is gold we should, at least start having our test suite compatible (then rest & soap).
Here the list of things we should update prior to run the test suite:
- dependency on mysql extention
- usage of =& new
- usage of PHP4 style constructors
A first step could be to use a newer version of simpletest as the one we are relying on is not even compatible with PHP 5.3 E_STRICT. We should move to
https://github.com/simpletest/simpletest