Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
When you do the
unique_elements
part you're losing track of that.By the way, that test expects false.
Please see top of the page: 373 guys out of 13,942 passed the PHP kata so there is nothing to check.