Subnet Mask Calculator 0.2

Subnet Mask Calculator is a simple PHP script that will return the subnet mask and slash-notated mask for a given number of hosts.
Subnet Mask Calculators purpose of this program is to help people calculate subnets for networks based on the number of hosts (computers).
Installation:
Step 1 - copy subnetmaskcalculator.php into a directory accessible from your web server (/var/www/html/ for example).
Step 2 - Visit http://yourhost.domain.tld/subnetmaskcalculator.php
Step 3 - Enjoy
If you have any trouble, support can be obtained by posts to http://www.vle.org/vle
Enhancements:
- This release changes URL GET from HTTP_GET_VARS to _GET.