php限制单个IP与ip段访问的代码
时间：2021-07-01 10:21:17
帮助过：116人阅读
分享下php实现IP访问限制的两段代码，分为限制单个IP访问与限制IP段访问两例代码，有需要的朋友参考下。- //加IP访问限制
- if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), 'unknown')) {
- $userip = getenv('HTTP_CLIENT_IP');
- } elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), 'unknown')) {
- $userip = getenv('HTTP_X_FORWARDED_FOR');
- } elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), 'unknown')) {
- $userip = getenv('REMOTE_ADDR');
- } elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], 'unknown')) {
- $userip = $_SERVER['REMOTE_ADDR'];
- }
- $banned_ip = array (
- "127.0.0.1",
- "203.0.0.1",
- "56.12.50.65",
- "192.168.1.88"
- );
- if (in_array($userip,$banned_ip))
- {
- die ("Your IP is block to connect !");
- }
- echo "测试代码！测试";
- ?>
例2，IP段限制，限制IP段访问。- //加IP访问限制
- if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), 'unknown')) {
- $userip = getenv('HTTP_CLIENT_IP');
- } elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), 'unknown')) {
- $userip = getenv('HTTP_X_FORWARDED_FOR');
- } elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), 'unknown')) {
- $userip = getenv('REMOTE_ADDR');
- } elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], 'unknown')) {
- $userip = $_SERVER['REMOTE_ADDR'];
- }
- $ban_range_low=ip2long("217.0.0.0"); //ip段上
- $ban_range_up=ip2long("217.255.255.255");//ip段尾
- $ip=ip2long($userip]);
- if ($ip>$ban_range_low && $ip<$ban_range_up)
- {
- print "Banned";
- exit();
- }
- ?>
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