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<?php $bitMask = 5; $bitMask = str_split(strrev((string)decbin((int)$bitMask))); $splited = array(); foreach($bitMask as $pos => $bit) { if (0 != $bit) { $splited[] = /* pow(2, $pos); */ (1 << $pos); } } var_dump($splited);

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39.51 ms | 402 KiB | 5 Q