Rename examples and update some comments.

[ci skip]

examples/executing_redis_commands.php

@@ -0,0 +1,57 @@
+<?php
+
+/*
+ * This file is part of the Predis package.
+ *
+ * (c) Daniele Alessandri <suppakilla@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+require __DIR__.'/shared.php';
+
+$client = new Predis\Client($single_server);
+
+// Plain old SET and GET example...
+$client->set('library', 'predis');
+$response = $client->get('library');
+
+var_export($response); echo PHP_EOL;
+/* OUTPUT: 'predis' */
+
+// Redis has the MSET and MGET commands to set or get multiple keys in one go,
+// cases like this Predis accepts arguments for variadic commands both as a list
+// of arguments or an array containing all of the keys and/or values.
+$mkv = array(
+    'uid:0001' => '1st user',
+    'uid:0002' => '2nd user',
+    'uid:0003' => '3rd user'
+);
+
+$client->mset($mkv);
+$response = $client->mget(array_keys($mkv));
+
+var_export($response); echo PHP_EOL;
+/* OUTPUT:
+array (
+  0 => '1st user',
+  1 => '2nd user',
+  2 => '3rd user',
+) */
+
+// Predis can also send "raw" commands to Redis. The difference between sending
+// commands to Redis the usual way and the "raw" way is that in the latter case
+// their arguments are not filtered nor responses coming from Redis are parsed.
+
+$response = $client->executeRaw(array(
+    'MGET', 'uid:0001', 'uid:0002', 'uid:0003'
+));
+
+var_export($response); echo PHP_EOL;
+/* OUTPUT:
+array (
+  0 => '1st user',
+  1 => '2nd user',
+  2 => '3rd user',
+) */