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1원팁] IP 대역 비교

· 2014-09-18 (목) 01:02:11 · 4861

 

IP 대역 비교하는 함수에요.

 

​function compareIpClass($lip, $rip, $mask=32) {
  $mask = pow(256,4)>>(!!($mask%8) ? 32 : $mask);
  $lip = (int)(ip2long($lip)/$mask);
  $rip = (int)(ip2long($rip)/$mask);
  return $lip === $rip;
}

compareIpClass('192.168.1.111', '192.168.1.112', 32); // false
compareIpClass('192.168.1.111', '192.168.1.112', 24); // true
compareIpClass('192.168.1.111', '192.168.1.112', 16); // true
compareIpClass('192.168.1.111', '192.168.1.112', 8); // true

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