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php 中IPV6 ip2long的问题解决办法

WBOY
Release: 2016-06-13 09:57:24
Original
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在32位系统,ip2long不能转换IPv6,但您可以转换ip2bin和bin2ip 这个函数转换为IPv4和IPv6,返回false,如果是无效的

实例程序

 代码如下 复制代码

function ip2bin($ip)
{
    if(filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) !== false)
        return base_convert(ip2long($ip),10,2);
    if(filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === false)
        return false;
    if(($ip_n = inet_pton($ip)) === false) return false;
    $bits = 15; // 16 x 8 bit = 128bit (ipv6)
    while ($bits >= 0)
    {
        $bin = sprintf("%08b",(ord($ip_n[$bits])));
        $ipbin = $bin.$ipbin;
        $bits--;
    }
    return $ipbin;
}


function bin2ip($bin)
{
   if(strlen($bin)        return long2ip(base_convert($bin,2,10));
   if(strlen($bin) != 128)
       return false;
   $pad = 128 - strlen($bin);
   for ($i = 1; $i    {
       $bin = "0".$bin;
   }
   $bits = 0;
   while ($bits    {
       $bin_part = substr($bin,($bits*16),16);
       $ipv6 .= dechex(bindec($bin_part)).":";
       $bits++;
   }
   return inet_ntop(inet_pton(substr($ipv6,0,-1)));
}
?>

source:php.cn
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