commit 025fe841de773f234d388d3cd653956cfa291a93
Author: Jack-Benny Persson <jack-benny@cyberinfo.se>
Date:   Sun Jun 1 12:54:38 2014 +0200

    Inital commit

diff --git a/netcalc.php b/netcalc.php
new file mode 100644
index 0000000..b7e78d5
--- /dev/null
+++ b/netcalc.php
@@ -0,0 +1,23 @@
+<?php
+
+if (isset($argv[1]))
+{
+    //$value=$argv[1];
+    $value=$argv[1];
+    if ($value < 0 || $value > 32)
+    {
+        print "Please enter an integer between 0 and 32 only\n";
+        exit;
+    }
+    $base=32-$value;
+    $netsize=pow(2, $base);
+    $hosts=$netsize-2;
+    print "$hosts\n";
+}
+
+else
+{
+    print "Enter something\n";
+}
+
+?>