Comments on: Storing IP Addresses in MYSQL http://www.ebrueggeman.com/blog/mysql/storing-ip-addresses-in-mysql/ Tips and Tricks for Web Developers Wed, 03 Dec 2008 23:03:39 +0000 http://wordpress.org/?v=2.5.1 By: Cypher http://www.ebrueggeman.com/blog/mysql/storing-ip-addresses-in-mysql/#comment-27 Cypher Tue, 02 Sep 2008 13:34:32 +0000 http://www.ebrueggeman.com/blog/php/storing-ip-addresses-in-mysql/#comment-27 Remember that you can convert those values in mysql as well: INET_ATON() - Return the numeric value of an IP address INET_NTOA() - Return the IP address from a numeric value E.g. SELECT INET_ATON("255.255.255.0"); will return "4294967040" and SELECT INET_NTOA(4294967040); will return "255.255.255.0". Remember that you can convert those values in mysql as well:
INET_ATON() - Return the numeric value of an IP address
INET_NTOA() - Return the IP address from a numeric value

E.g.
SELECT INET_ATON(”255.255.255.0″);
will return “4294967040″ and
SELECT INET_NTOA(4294967040);
will return “255.255.255.0″.

]]> By: Elliott Brueggeman http://www.ebrueggeman.com/blog/mysql/storing-ip-addresses-in-mysql/#comment-4 Elliott Brueggeman Thu, 29 Nov 2007 21:48:46 +0000 http://www.ebrueggeman.com/blog/php/storing-ip-addresses-in-mysql/#comment-4 Not a bug - actually if you are searching for a range of IP addresses, you need to convert the range using ip2long() and then search for that in MySQL. <strong>Example:</strong> You want to find an IP address in the range 192.168.0.0 to 192.168.255.255. So convert those bounds to long format using php: $bound1=ip2long('192.168.0.0); //this is -1062731776 $bound2=ip2long('192.168.255.255'); //this is -1062666241 Then do a MySQL query: $sql="SELECT * FROM ip_table where ip BETWEEN $bound1 AND $bound2"; Remember that the first argument of BETWEEN must be the smaller number. Not a bug - actually if you are searching for a range of IP addresses, you need to convert the range using ip2long() and then search for that in MySQL.

Example:

You want to find an IP address in the range 192.168.0.0 to 192.168.255.255.

So convert those bounds to long format using php:

$bound1=ip2long(’192.168.0.0); //this is -1062731776
$bound2=ip2long(’192.168.255.255′); //this is -1062666241

Then do a MySQL query:

$sql=”SELECT * FROM ip_table where ip BETWEEN $bound1 AND $bound2″;

Remember that the first argument of BETWEEN must be the smaller number.

]]> By: jbagley http://www.ebrueggeman.com/blog/mysql/storing-ip-addresses-in-mysql/#comment-3 jbagley Thu, 29 Nov 2007 20:14:40 +0000 http://www.ebrueggeman.com/blog/php/storing-ip-addresses-in-mysql/#comment-3 Nice. But, I need to be able to write a query that returns all ip addresses like 192.168. The function doesn't behave well with incomplete ip addresses. 192.168 becomes -1073741656 -1073741656 returns to 192.0.0.168 Maybe a bug? Nice. But, I need to be able to write a query that returns all ip addresses like 192.168. The function doesn’t behave well with incomplete ip addresses.

192.168 becomes -1073741656
-1073741656 returns to 192.0.0.168

Maybe a bug?

]]> By: sroberts http://www.ebrueggeman.com/blog/mysql/storing-ip-addresses-in-mysql/#comment-2 sroberts Thu, 22 Nov 2007 18:12:50 +0000 http://www.ebrueggeman.com/blog/php/storing-ip-addresses-in-mysql/#comment-2 This is interesting - I have IP Addresses stored as a varchar. I didn't even realize you could store them a different way. Well done! This is interesting - I have IP Addresses stored as a varchar. I didn’t even realize you could store them a different way. Well done!

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