Fixed php version comparison bug in 0.1

@@ -6,7 +6,7 @@ Description: Various classes to help out with stuff
 Author: Tenzing
 */
 
-    if (phpversion() < '5.2.2') {
+    if (version_compare(PHP_VERSION, '5.2.2') !== 1) {
         die('PHP version 5.2.2 or greater is required');
     }