php IP及IP段进行访问限制的代码
2018-09-24 21:36
192.168.1.1 单个IP
192.168.1.* 这样代理 192.168.1.1-192.168.1-255
192.158.1.2-20 这样是代表192.158.1.2-192.158.1.20
也可以这样写 192.168.1.[123]
嘿嘿~一个方法不知道想法是否周全,拿出来大家讨论
使用
以下是引用片段:
$oBlock_ip = new block_ip();
$oBlock_ip->checkIP();
以下是引用片段:
复制代码 代码如下:
<?php
class block_ip {
var $Block_ip = array(192.168.1.1,210.10.2.1-20,222.34.4.*);
function __construct(){
}
function __destruct(){
}
private function makePregIP($str){
if (strstr($str,-)) {
$aIP = explode(.,$str);
foreach ($aIP as $k=>$v) {
if (!strstr($v,-)) {
$preg_limit .= makePregIP($v);
} else{
$aipNum = explode(-,$v);
for($i=$aipNum[0];$i<=$aipNum[1];$i++){
$preg .=$preg?.$i:[.$i;
}
$preg_limit .=strrpos($preg_limit,.,1)==(strlen($preg_limit)-1)?$preg.]:..$preg.];
}
}
}else{
$preg_limit .= $str..;
}
return $preg_limit;
}
private function getAllBlockIP(){
if ($this->Block_ip) {
foreach ($this->Block_ip as $k=>$v) {
$ipaddres = $this->makePregIP($v->start_ip);
$ip = str_ireplace(.,\.,$ipaddres);
$ip = str_replace(*,[0-9]{1,3},$ip);
$ipaddres = /.$ip./;
$ip_list[] = $ipaddres;
}
}
return $ip_list;
}
public function checkIP() {
$iptable = $this->getAllBlockIP();
$IsJoined = true;
//取得用户ip
$Ip = $this->get_client_ip();
$Ip = trim($Ip);
//剔除黑名单中的IP区段
if ($iptable) {
foreach($iptable as $value) {
if (preg_match({$value},$Ip)) {
$IsJoined = false;
break;
}
}
}
//如果在ip黑名单中就执行如下操作
if( !$IsJoined ){
echo IP Error;
exit;
}
}
private function get_client_ip(){
if (getenv(HTTP_CLIENT_IP) && strcasecmp(getenv(HTTP_CLIENT_IP), unknown))
$ip = getenv(HTTP_CLIENT_IP);
else if (getenv(HTTP_X_FORWARDED_FOR) && strcasecmp(getenv(HTTP_X_FORWARDED_FOR), unknown))
$ip = getenv(HTTP_X_FORWARDED_FOR);
else if (getenv(REMOTE_ADDR) && strcasecmp(getenv(REMOTE_ADDR), unknown))
$ip = getenv(REMOTE_ADDR);
else if (isset($_SERVER[REMOTE_ADDR]) && $_SERVER[REMOTE_ADDR] && strcasecmp($_SERVER[REMOTE_ADDR], unknown))
$ip = $_SERVER[REMOTE_ADDR];
else
$ip = unknown;
return($ip);
}
}
?>
文章标题:php IP及IP段进行访问限制的代码
文章链接:http://soscw.com/index.php/essay/17620.html