public static function CleantalkHelper::ip_validate in Anti Spam by CleanTalk 7.5

Same name and namespace in other branches

1. 7.4 src/CleantalkHelper.php \CleantalkHelper::ip_validate()

2 calls to CleantalkHelper::ip_validate()

CleantalkHelper::ip_get in src/CleantalkHelper.php

CleantalkSFW::ip_get in src/CleantalkSFW.php

File

src/CleantalkHelper.php, line 222

Class

CleantalkHelper

Cleantalk's hepler class

Code

public static function ip_validate($ip) {
  if (!$ip) {
    return false;
  }

  // NULL || FALSE || '' || so on...
  if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) && $ip != '0.0.0.0') {
    return 'v4';
  }

  // IPv4
  if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) && self::ip_v6_reduce($ip) != '0::0') {
    return 'v6';
  }

  // IPv6
  return false;

  // Unknown
}