Regex valid ip

[eluser]slowgary[/eluser]
That thread DOES have a regex in it somewhere. Looked like this:

Code:

if ( ! preg_match( "/^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$/", $ip))
{
     return FALSE;
}

But you shoudlread the thread and check out the rest of the code so you know what the regex won't do (although it may be suitable as stands). I'm not too good with regexes myself (and probably never will be ;-P).