More SQL command (drop table, drop database)

delete, select & insert upgraded 
More utility function (node to array, arrayToNode)
XMLDB special move command
PHP Unit Test

simpletest/test/support/spl_examples.php

@@ -0,0 +1,15 @@
+<?php
+    // $Id: spl_examples.php 1262 2006-02-05 19:35:31Z lastcraft $
+
+    class IteratorImplementation implements Iterator {
+        function current() { }
+        function next() { }
+        function key() { }
+        function valid() { }
+        function rewind() { }
+    }
+
+    class IteratorAggregateImplementation implements IteratorAggregate {
+        function getIterator() { }
+    }
+?>