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@ 2020-04-18T08:25:57Z

<?php

function gray_to_binary($value) {
    $dec = $value;
    for ($i = 1; $i < strlen($value); $i++) {
        $dec[$i] = (int)$dec[$i-1] ^ (int)$value[$i];
    }
    return $dec;
}

echo bindec(gray_to_binary(decbin(115)));

Output
Performance
VLD
References
Branches

bindec: documentation ( source)
decbin: documentation ( source)

preferences:dark modelive preview

21.74 ms | 405 KiB | 5 Q