Output By IP Range

[xProteuSx]

I am writing a small snippet which displays a particular HTML table but only if the IP is a Canadian one.  I have downloaded a file with Canadian IP ranges from http://www.ipaddresslocation.org/ip_ranges/get_ranges.php and I am trying to figure out what the easiest way to run the script is, without causing the PHP server to crap out.  I don't know how hard it is for a server to run an IF statement that includes so many 'variables'.  Any ideas?  Would it be best to do this as an array?  If so, how do I go about doing it?  Thanks in advance guys!

[Caesar]

What do the IP ranges look like (Eg. 72.87.*.*)? Might be able to provide some help with example code if I had an idea of what they were. If anything, give you some ideas. :-)

[xProteuSx]

Here is a sample section of the file:

 

24.108.0.0 24.109.255.255

24.114.0.0 24.114.255.255

24.122.0.0 24.122.255.255

24.129.224.0 24.129.239.255

24.137.32.0 24.137.47.255

24.137.64.0 24.137.127.255

24.137.192.0 24.137.223.255

24.138.0.0 24.138.191.255

24.139.0.0 24.139.31.255

24.141.0.0 24.141.255.255

24.146.0.0 24.146.31.255

24.150.0.0 24.150.255.255

24.153.0.0 24.153.31.255

24.156.128.0 24.156.159.255

24.200.0.0 24.203.255.255

24.207.0.0 24.207.127.255

24.212.0.0 24.212.127.255

24.213.64.0 24.213.95.255

24.215.0.0 24.215.127.255

24.222.0.0 24.222.255.255

24.224.128.0 24.224.255.255

 

It goes on and on, but it looks like this ...  hope that helps.

[ohdang888]

well they all start with first 2 numbers as 24.

 

try this....

 

  $data = $ip address of the person;

  if (preg_match('/(\d+)./', $data, $first_two_numbers)) {

echo "The first to numbers are ".$first_two_numbers[1];

}else{

echo "no working";

}

[xProteuSx]

I understand what you are saying, but the problem is that the IP's do not start with only 24.  They start with a whole whack of different numbers.  I could write a huge series of IF statments, but that would be very harsh on the server, right?  I mean, it would have a branching effect and would result in hundreds, if not thousands, of IF statements.  I'm wondering if there isn't a way to load the numbers into an array and just run it through a single loop.  Know what I mean?

[Caesar]

Or I suppose you can take the reverse approach & compare the user's IP to the IP's in your file....

 

<?php

  $iprange = file_get_contents('ca_ips.txt');
  $userip = $_SERVER['REMOTE_ADDR'];
  $iparray = explode(".",$userip);

    if(preg_match('/'.$iparray[0].'\.'.$iparray[1].'\.[0-9]+\.[0-9]+/', $iprange)) {
      //Do your thang here
    }
  

?>

 

Should work.

[xProteuSx]

Caesar, thanks for you input.  I will try this out soon, and I will get back to you about whether it works.  Thanks a bunch.