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An Elo-based rating system for Stack Overflow
Answers and rating deltas for
PHP - determine whether the variable is undefined or NULL
| Author | Votes | Δ |
|---|---|---|
| OzzyCzech | 5 | +4.12 |
| ArtisticPhoenix | 1 | +1.42 |
| Rick James | 0 | -0.22 |
| deceze | 0 | -1.42 |
| Tschallacka | 0 | -0.30 |
Last visited: Jun 20, 2018, 6:45:27 PM