8 cool features to come in #PHP 7.1

1. Nullable Types
2. Square Bracket Syntax For Array Destructuring Assignment
3. Warn About Invalid Strings In Arithmetic
4. Allow Specifying Keys In List()
5. Generalize Support Of Negative String Offsets
6. Void Return Type
7. Support Class Constant Visibility
8. Catching Multiple Exception Types

– Reed the tweet