PHP Generate IP Ranges

Question

As you know, range() function can get a range between number and the other,

how to do the same with an IP
as example..

$range_one = "1.1.1.1";
$range_two = "1.1.3.5";
print_r( range($range_one, $range_two) ); 

 /* I want a result of :
     1.1.1.1
     1.1.2.2
     1.1.3.3
     1.1.3.4
     1.1.3.5
 */

i was thinking of using the explode() function to explode " . " and separate each number then use range with each of them after that combine them all together, it seems a bit complicated for me and i guess there's an easier method to do it

Repel

Answer 1

You can use ip2long to convert the IP addresses into integers. Here's a function that works for old IPv4 addresses:

/* Generate a list of all IP addresses
   between $start and $end (inclusive). */
function ip_range($start, $end) {
  $start = ip2long($start);
  $end = ip2long($end);
  return array_map('long2ip', range($start, $end) );
}

$range_one = "1.1.1.1";
$range_two = "1.1.3.5";
print_r( ip_range($range_one, $range_two) );

Mediate

Answer 2

How about this:

$range_one = "1.1.1.1";
$range_two = "1.1.3.5";
$ip1 = ip2long ($range_one);
$ip2 = ip2long ($range_two);
while ($ip1 <= $ip2) {
    print_r (long2ip($ip1) . "\n");
    $ip1 ++;

}

Update:

BTW, your expected output isn't exactly a range. For instance, the next IP after 1.1.1.1 is 1.1.1.2 and not 1.1.2.2.

Mayramays

you have to see the result yourself, it ends up with like infinity results and not like how i mentioned, also.. it ignores the given second range – Repel

See the update to the answer, its not infinity. Your expected output was missing several IP addresses in the range. – Mayramays

Answer 3

You may use inet_ntop, inet_ pton http://www.php.net/manual/en/function.inet-ntop.php

Witchhunt