<body>
`<?php
function ipToLong($network)
{ $networkLong = ”;
if(filter_va￥本文来源gaodai#ma#com搞@@代~&码网^搞gaodaima代码r($network, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)){
$networkLong=base_convert(sprintf(“%u”,ip2long($network)), 10, 2);
}else{
$networkPack = inet_pton($network);
<code> $bits = 15; while ($bits >= 0) { $bin = sprintf("%08b", (ord($networkPack[$bits]))); $networkLong = $bin.$networkLong; $bits--; }} return $networkLong;</code>
}
/获取网络地址/
function getSegment($network,$mask){
if(filter_var($network, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)){
$ipv4Long=ipToLong($network);
$maskLong=str_pad(str_repeat(1, $mask), 32, 0);
$segment=$ipv4Long & $maskLong;
return $segment;
}else{
$ipv6Long=ipToLong($network);
$maskLong=str_pad(str_repeat(1, $mask), 128, 0);
$segment=$ipv6Long & $maskLong;
return $segment;
}
}
echo ipToLong(‘106.32.59.244’);
echo ‘
‘;
echo getSegment(‘106.32.59.244′,’29’);
?> `
上面计算出来的网络地址就是106.32.59.244，为什么和下图计算出来的不一致呢？
回复内容：
<body>
`<?php
function ipToLong($network)
{ $networkLong = ”;
if(filter_var($network, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)){
$networkLong=base_convert(sprintf(“%u”,ip2long($network)), 10, 2);
}else{
$networkPack = inet_pton($network);
<code> $bits = 15; while ($bits >= 0) { $bin = sprintf("%08b", (ord($networkPack[$bits]))); $networkLong = $bin.$networkLong; $bits--; }} return $networkLong;</code>
}
/获取网络地址/
function getSegment($network,$mask){
if(filter_var($network, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)){
$ipv4Long=ipToLong($network);
$maskLong=str_pad(str_repeat(1, $mask), 32, 0);
$segment=$ipv4Long & $maskLong;
return $segment;
}else{
$ipv6Long=ipToLong($network);
$maskLong=str_pad(str_repeat(1, $mask), 128, 0);
$segment=$ipv6Long & $maskLong;
return $segment;
}
}
echo ipToLong(‘106.32.59.244’);
echo ‘
‘;
echo getSegment(‘106.32.59.244′,’29’);
?> `
上面计算出来的网络地址就是106.32.59.244，为什么和下图计算出来的不一致呢？
因为和你机器是32位还是64位有关系~
转载请注明原文链接：php 计算网络地址的bug
