- /**
- * 获取客户端IP地址
- * @param integer $type 返回类型 0 返回IP地址 1 返回IPV4地址数字
- * @return mixed
- */
- function get_client_ip($type = 0) {
- $type = $type ? 1 : 0;
- static $ip = NULL;
- if ($ip !== NULL) return $ip[$type];
- if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
- $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
- $pos = array_search('unknown',$arr);
- if(false !== $pos) unset($arr[$pos]);
- $ip = trim($arr[0]);
- }elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
- $ip = $_SERVER['HTTP_CLIENT_IP'];
- }elseif (isset($_SERVER['REMOTE_ADDR'])) {
- $ip = $_SERVER['REMOTE_ADDR'];
- }
- // IP地址合法验证
- $long = sprintf("%u",ip2long($ip));
- $ip = $long ? array($ip, $long) : array('0.0.0.0', 0);
- return $ip[$type];
- }
- //该片段来自于http://www.codesnippet.cn/detail/260320149129.html
来源: http://www.codesnippet.cn/detail/260320149129.html