1 files changed, 51 insertions, 8 deletions
diff --git a/phpBB/phpbb/di/service_collection.php b/phpBB/phpbb/di/service_collection.php
index 65df9ab1d1..a8eeeab8bb 100644
--- a/phpBB/phpbb/di/service_collection.php
+++ b/phpBB/phpbb/di/service_collection.php
@@ -1,9 +1,13 @@
 <?php
 /**
 *
-* @package phpBB3
-* @copyright (c) 2011 phpBB Group
-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
 *
 */
 
@@ -13,12 +17,15 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
 * Collection of services to be configured at container compile time.
-*
-* @package phpBB3
 */
 class service_collection extends \ArrayObject
 {
 	/**
+	* @var \Symfony\Component\DependencyInjection\ContainerInterface
+	*/
+	protected $container;
+
+	/**
 	* Constructor
 	*
 	* @param ContainerInterface $container Container object
@@ -29,6 +36,44 @@ class service_collection extends \ArrayObject
 	}
 
 	/**
+	* {@inheritdoc}
+	*/
+	public function getIterator()
+	{
+		return new service_collection_iterator($this->container, $this);
+	}
+
+	// Because of a PHP issue we have to redefine offsetExists
+	// (even with a call to the parent):
+	// 		https://bugs.php.net/bug.php?id=66834
+	// 		https://bugs.php.net/bug.php?id=67067
+	// But it triggers a sniffer issue that we have to skip
+	// @codingStandardsIgnoreStart
+	/**
+	* {@inheritdoc}
+	*/
+	public function offsetExists($index)
+	{
+		return parent::offsetExists($index);
+	}
+	// @codingStandardsIgnoreEnd
+
+	/**
+	* {@inheritdoc}
+	*/
+	public function offsetGet($index)
+	{
+		$task = parent::offsetGet($index);
+		if ($task === null)
+		{
+			$task = $this->container->get($index);
+			$this->offsetSet($index, $task);
+		}
+
+		return $task;
+	}
+
+	/**
 	* Add a service to the collection
 	*
 	* @param string $name The service name
@@ -36,8 +81,6 @@ class service_collection extends \ArrayObject
 	*/
 	public function add($name)
 	{
-		$task = $this->container->get($name);
-
-		$this->offsetSet($name, $task);
+		$this->offsetSet($name, null);
 	}
 }