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How can I convert this M-N mysql array in this other array in PHP? (examples inside)
| Author | Votes | Δ |
|---|---|---|
| Cal | 2 | +3.16 |
| Bill Karwin | 2 | +0.16 |
| raul | 1 | +0.69 |
| raul | 0 | -2.31 |
| Cal | 0 | -2.84 |
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