[SOLVED] IP part match

[Cep]

Hi,

 

I want to run a quick regex against IP addresses but I want to do it on blocks for example,

 

65.54.188\.[0-9]{1,3}

 

Should give me all IP addresses for the MSN search bots in the 65.54.188.1 - .255 range correct?

[MadTechie]

try

 

65\.54\.188\.[0-9]{1,3}

 

 

 

more complex

65\.54\.188\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)

 

[Cep]

The more complex one would be best then as my original would do a range of 65.54.188.1 - 999 and the second will only do up to 255?

 

 

[MadTechie]

correct but i think the simple one is quicker.. 

 

the choice is your

[Cep]

Thanks

 

So the following should work then,

    if (preg_match("65\.54\.188.\(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)", $ipaddress)) {
      $ipaddress = $ipaddress." - MSN Search Bot";
      $user_name = "Bot";
    }
    
    if (preg_match("65\.249\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).\(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)", $ipaddress)) {
       $ipaddress = $ipaddress." - Google Crawler Bot";
       $user_name = "Bot";
    }

 

It should work but I get a delimiter error.

 

 

 

Oops no I got it sorted now should be,

 

    if (preg_match("/65.54.188.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)/", $ipaddress)) {
      $ipaddress = $ipaddress." - MSN Search Bot";
      $user_name = "Bot";
    }

    if (preg_match("/65.249.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)/", $ipaddress)) {
       $ipaddress = $ipaddress." - Google Crawler Bot";
       $user_name = "Bot";
    }

 

Cheers for your help!