ip地址如何转换为IPCDBL
ip地址如何转换为IPCDBL?
如192.168.1.255转换后是3232236031,
求ip转换为ipcdbl的算法和ipcdbl转换为ip的算法
------解决方案--------------------
- PHP code
= 4){
$long = intval($key[0]) * 16777216 + intval($key[1]) * 65536 + intval($key[2]) * 256 + intval($key[3]);
}
return $long;
}
function longtoip($long){
$long = floor($long);
$p4 = $long - floor($long / 256) * 256;
$long = ($long - $p4) / 256;
$p3 = $long - floor($long / 256) * 256;
$long = ($long - $p3) / 256;
$p2 = $long - floor($long / 256) * 256;
$long = ($long - $p2) / 256;
$p1 = $long;
$ip = $p1.'.'.$p2.'.'.$p3.'.'.$p4;
return $ip;
}
?>
