3v4l.org

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<?php $num = 3; $parity = $b = 0; $parity = $num & 1; $b += $parity; $b += $num & 2 ? 1 : 0; $b += $num & 4 ? 1 : 0; $b += $num & 8 ? 1 : 0; $b += $num & 16 ? 1 : 0; $b += $num & 32 ? 1 : 0; $b += $num & 64 ? 1 : 0; printf("Num: %d\nBits on: %d\nParity: %d", $num, $b, $parity);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Num: 3 Bits on: 2 Parity: 1
preferences:
104.21 ms | 2085 KiB | 4 Q