IP segmentation class for IP acquisition and judgment of PHP

IP segmentation class for IP acquisition and judgment of PHP

Class Ip {

/**
* Take IP
* @return String
*/
public static function get () {
if ($_server[' http_client_ip '] && $_server

[' Http_client_ip ']!= ' unknown ') {
$ip = $_server[' http_client_ip '];
} elseif ($_server[' http_x_forwarded_for ') && $_server

[' http_x_forwarded_for ']!= ' unknown ') {
    $ip = $_server[' http_x_forwarded_for '];
  } else {
    $ip = $_server[' remote_addr ';
  }
   return $IP;
 }
 
 /**
  * IP to reshape value
  * @param string $IP IP
  * @return int
  */  public static function Iptoint ($IP) {
   $ips = Explode ('. ', $ip);
  if (Count ($ips) & gt;=4) {
    $int = $ips [0]*256*256*256+ $ips [1]*256*256+ $ips [2]

*256+ $ips [3];//calculated according to the Ip,a,b,c class
  } else {
   throw new Exception (' IP is error ');
 &NBSP}
  return $int;
 
 
 /**
  * Determine if IP is in an IP segment
  * param string $startIp Start IP
  * @param string $endIp End IP
  * @param string $IP IP
  * @return b OOL
  */
 public static function IsIn ($startIp, $endIp, $ip) {
   $start = Ip::iptoint ($sta RTIP);
   $end = Ip::iptoint ($endIp);
   $ipInt = Ip::iptoint ($IP);
   $result = false;
  if ($ipInt >= $start && $ipInt <= $end) {
    $result = true;
 & nbsp;}
  return $result;
 }
}