use PHP 5.5, remove $self = $this

src/AbstractPluginManager.php

@@ -63,9 +63,9 @@ public function __construct(ConfigInterface $configuration = null)
     {
         parent::__construct($configuration);
         $self = $this;
-        $this->addInitializer(function ($instance) use ($self) {
+        $this->addInitializer(function ($instance) {
             if ($instance instanceof ServiceLocatorAwareInterface) {
-                $instance->setServiceLocator($self);
+                $instance->setServiceLocator($this);
             }
         });
     }

src/ServiceManager.php

@@ -610,12 +610,10 @@ public function create($name)
      */
     private function createDelegatorCallback($delegatorFactory, $rName, $cName, $creationCallback)
     {
-        $serviceManager  = $this;
-
-        return function () use ($serviceManager, $delegatorFactory, $rName, $cName, $creationCallback) {
+        return function () use ($delegatorFactory, $rName, $cName, $creationCallback) {
             return $delegatorFactory instanceof DelegatorFactoryInterface
-                ? $delegatorFactory->createDelegatorWithName($serviceManager, $cName, $rName, $creationCallback)
-                : $delegatorFactory($serviceManager, $cName, $rName, $creationCallback);
+                ? $delegatorFactory->createDelegatorWithName($this, $cName, $rName, $creationCallback)
+                : $delegatorFactory($this, $cName, $rName, $creationCallback);
         };
     }
 
@@ -628,9 +626,8 @@ private function createDelegatorCallback($delegatorFactory, $rName, $cName, $cre
      * @return bool|mixed|null|object
      * @throws Exception\ServiceNotFoundException
      *
-     * @internal this method is internal because of PHP 5.3 compatibility - do not explicitly use it
      */
-    public function doCreate($rName, $cName)
+    protected function doCreate($rName, $cName)
     {
         $instance = null;
 
@@ -1188,10 +1185,9 @@ protected function checkNestedContextStop($force = false)
      */
     protected function createDelegatorFromFactory($canonicalName, $requestedName)
     {
-        $serviceManager     = $this;
         $delegatorsCount    = count($this->delegators[$canonicalName]);
-        $creationCallback   = function () use ($serviceManager, $requestedName, $canonicalName) {
-            return $serviceManager->doCreate($requestedName, $canonicalName);
+        $creationCallback   = function () use ($requestedName, $canonicalName) {
+            return $this->doCreate($requestedName, $canonicalName);
         };
 
         for ($i = 0; $i < $delegatorsCount; $i += 1) {
@@ -1220,7 +1216,7 @@ protected function createDelegatorFromFactory($canonicalName, $requestedName)
             );
         }
 
-        return $creationCallback($serviceManager, $canonicalName, $requestedName, $creationCallback);
+        return $creationCallback($this, $canonicalName, $requestedName, $creationCallback);
     }
 
     /**