[wip] listCollections iteration returns no results

Author: jmikola

listCollections.php

@@ -0,0 +1,22 @@
+<?php
+
+require "tests/bootstrap.php";
+
+use MongoDB\Driver\Command;
+use MongoDB\Driver\Manager;
+use MongoDB\Driver\ReadPreference;
+use MongoDB\Model\CollectionInfoCommandIterator;
+
+$command = new Command(array('listCollections' => 1));
+$readPreference = new ReadPreference(ReadPreference::RP_PRIMARY);
+
+$manager = new Manager('mongodb://127.0.0.1');
+$result = $manager->executeCommand('phplib_test', $command, $readPreference);
+
+$iterator = new CollectionInfoCommandIterator($result);
+
+foreach ($iterator as $value) {
+    echo $collection->getName(), "\n";
+}
+
+echo "===DONE===\n";