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3 Responses to “Converting IP Address Formats”

1. Ian Mahuron Says:
   February 6th, 2007 at 11:30 am

   It’s not unusual to store IP addresses in a database using a network long. First, it’s space efficient. Second, an integer format allows you to easily (and inexpensively) query for IPs which fall into a given subnet or address range. Doing this with DDN (dotted decimal notation) formatted columns is far more difficult.

   A DllCall to wsock32.dll’s inet_ntoa() function will simplify your code (even eliminate the intermediate dec2hex conversion). This DLL has additional similar functions for address manipulation.

2. Lucian Says:
   February 9th, 2007 at 1:56 pm

   Or you can use the following php function

   function address2number($ip){
   $retVal = false;
   list($a,$b,$c,$d) = explode('.', $ip);
   if(is_int($a) && is_int($b) && is_int($c) && is_int($d)){
   $retVal = ($a

   I use this code on my website: Ip global positioning . I have also google maps API to show the exact location.

3. Daily Cup of Tech Says:
   March 28th, 2007 at 5:18 pm

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