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<?php $a = 0x80; var_dump(base_convert(0x80,16,10)); $converted_a = base_convert($a, 16, 2); var_dump($converted_a); $b = ~$a; // -$a -1 or -297 $converted_b = base_convert($b, 16, 2); printf("\n%d", $converted_b); echo "\n";

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34.94 ms | 402 KiB | 5 Q