php匹配ip地址段的几种方法代码 发布时间:2023/10/11 php怎么匹配ip地址段,具体实例代码如下,有需要的朋友可以试下: <?php $ips = array('192.168.1.1-192.168.1.254','192.168.0.1-192.168.0.254','192.168.3.1-192.168.3.254','192.168.4.1-192.168.4.254'); foreach ($ips as $ip) { list($start, $end) = explode('-', $ip); //去除32位下负数 $start = sprintf("%u", ip2long($start)); $end = sprintf("%u",ip2long($end)); $newips[] = array($start, $end); } function my_sort($a, $b) { if ($a[0] == $b[0]) return 0; return ($a[0] < $b[0]) ? -1 : 1; } //从大到小排序,IP段较多时可以使用2分查找或多分。 usort($newips, 'my_sort'); $matchip = '192.168.1.22'; $matchip = sprintf("%u",ip2long($matchip)); foreach ($newips as $value) { if ($matchip > $value[0] && $matchip < $value[1]) echo "匹配IP段:". long2ip($value[0]) . '-' . long2ip($value[1]) . "\n"; } 复制代码 CIDR方式匹配,具体代码如下: <?php function cidr_match($ip, $range) { list ($subnet, $bits) = explode('/', $range); $ip = ip2long($ip); $subnet = ip2long($subnet); $mask = -1 << (32 - $bits); $subnet &= $mask; return ($ip & $mask) == $subnet; } var_dump(cidr_match('192.168.1.22', '192.168.1.0/24'));复制代码 CIDR获取IP段起始IP地址: <?php function cidrToRange($cidr) { $range = array(); $cidr = explode('/', $cidr); $range[0] = long2ip((ip2long($cidr[0])) & ((-1 << (32 - (int)$cidr[1])))); $range[1] = long2ip((ip2long($cidr[0])) + pow(2, (32 - (int)$cidr[1])) - 1); return $range; } var_dump(cidrToRange("192.168.1.1/24"));复制代码