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<?php function highestBitsOfByte(int $byte, int $count = 2):int { if($count < 0 OR $count > 8) return false; //Error return ($byte&0xFF) >> (8-$count); } $input = 0b10011110; $r = highestBitsOfByte($input,2); echo sprintf('%08b',$r);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
00000010

preferences:
113.71 ms | 406 KiB | 5 Q