PHP Get GTA5 Hash key

gtahashkey.php

function GetGtaHashKey($name, $format = false)
{
    $num = 0;
    $byte = unpack('C*', utf8_encode($name));
    for ($i = 1; $i <= count($byte); $i++) {
        $num += $byte[$i];
        $num += $num << 10;
        $num &= 0xFFFFFFFF;
        $num ^= $num >> 6;
    }
    $num += $num << 3;
    $num &= 0xFFFFFFFF;
    $num ^= $num >> 11;
    $result = ($num + ($num << 15));
    $result &= 0xFFFFFFFF;
    if($result > 2147483647) {
        $result -= 4294967296;
    }
    return $format ? sprintf("0x%08X", $result) : $result;
}