[Paul M]

Well I haven't tested it, but this should work ;

Find;

PHP Code:

    $proxyip = $iplist[0]; 


Add below it ;

PHP Code:

    if (preg_match("#^(127|10|172\.(1[6-9]|2[0-9]|3[0-1])|192\.168|169\.254)\.#", $proxyip)) 

    {
        $proxyip = ''; 
    } 


Obviously this won't change any existing data.

Edit: Updated for full 172 range and 127 range as per posts below.