private static function Database::ipBetween in Smart IP 6.2

Same name and namespace in other branches

1. 7.2 includes/vendor/ip2location/ip2location-php/IP2Location.php \IP2Location\Database::ipBetween()

Determine whether the given IP number of the given version lies between the given bounds

This function will return 0 if the given ip number falls within the given bounds for the given version, -1 if it falls below, and 1 if it falls above.

@access private @static

Parameters

int $version IP version to use (either 4 or 6):

int|string $ip IP number to check (int for IPv4, string for IPv6):

int|string $low Lower bound (int for IPv4, string for IPv6):

int|string $high Uppoer bound (int for IPv4, string for IPv6):

Return value

int

1 call to Database::ipBetween()

Database::binSearch in includes/vendor/ip2location/ip2location-php/IP2Location.php

Perform a binary search on the given IP number and return a pointer to its record

File

includes/vendor/ip2location/ip2location-php/IP2Location.php, line 945

Class

Database

IP2Location database class

Namespace

IP2Location

Code

private static function ipBetween($version, $ip, $low, $high) {
  if (4 === $version) {

    // Use normal PHP ints
    if ($low <= $ip) {
      if ($ip < $high) {
        return 0;
      }
      else {
        return 1;
      }
    }
    else {
      return -1;
    }
  }
  else {

    // Use BCMath
    if (bccomp($low, $ip, 0) <= 0) {
      if (bccomp($ip, $high, 0) <= -1) {
        return 0;
      }
      else {
        return 1;
      }
    }
    else {
      return -1;
    }
  }
}