进制转换，二进制与十进制互转，php版本

hexconvert.php

// eg: Twelve(29) => [1,1,1,0,1]                           
function Twelve($num)
{
    $num = (int)$num;
    $result = [];
    if ($num == 2) {
        $result = [0, 1];
    } else {
        while ($num>2) {
            $result[]=$num%2;
            $num = floor($num/2);
        }
        $result[]=$num%2;
    }
    $result = array_reverse($result);
    return $result;
}    
// eg: Lists2StringTen([1,1,1,0,1]) => 29
function Lists2StringTen($list)
{
    $num_list = array_reverse($list);
    $num = 0;
    for ($i = 0; $i < count($num_list); $i++) {
        if ($num_list[$i] == 1) {
            $num += pow(2, $i);
        }
    }
    return $num;
}
                                   

修复传入值等于2时的bug