StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
php How to check existed before insert data to mysql
| Author | Votes | Δ |
|---|---|---|
| spencer7593 | 2 | -0.09 |
| Amitsouko | 2 | +0.71 |
Last visited: Dec 28, 2016, 2:56:56 AM