StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
PHP: Find number of different letters in a string
| Author | Votes | Δ |
|---|---|---|
| nickb | 9 | +1.00 |
| NikiC | 5 | -0.58 |
| merlin2011 | 1 | -2.42 |
Last visited: Sep 14, 2014, 5:07:29 AM