(Note – I accidentally gave conflicting instructions to the person who runs our newsletter. If you are actually interested in the article I wrote about people being silly about dynamicly typed languages you can go here)
I saw on a StackOverflow posting, someone was asking to see how you could use a Zend Framework validator to tell if an IP address was between two addresses. The individual was trying to use Zend_Validate_Between to do the checking. However, IP addresses generally are not checked between two arbitrary addresses such as between 192.168.0.45 and 192.168.0.60. Instead, the check is usually done to validate an IP address against a subnet.