Email Notification

When a certain IP is detected

[wfernley]

Hello,

I was curious how I can get my website to email me when a IP is detected on my site.

I know I would have to get the users $_SERVER['REMOTE_ADDR'] and then run it with the ip I am looking for. The problem is the ip I am looking for is a subnet. So I cant specifically look for 123.45.67.890, but I need to look for 123.45.67.*. How can I do this?

The actual email part is fine I have that setup I guess its just the ripping apart of the $_SERVER['REMOTE_ADDR'] to see if the beginning matches the ip I am looking for.

Does anyone know how I can do this?

Thanks :)

wes

[mattx17]

Use a quick regular expression to match it. You may also want to set a cookie on the remote browser so you don't end up getting a multiple e-mails per visit.

if (preg_match("#123\.45\.67\.[0-9]{1,3}#",$_SERVER['REMOTE_ADDR']) &&!$_COOKIE['MailSent']) {
mail('[e-mail]','IP Detected',$_SERVER['REMOTE_ADDR'] . ' Detected!');
setcookie('MailSent','TRUE');
}

[wfernley]

Great thanks mattx17!

That worked perfectly.