diff --git a/src/Symfony/Component/BrowserKit/CookieJar.php b/src/Symfony/Component/BrowserKit/CookieJar.php
index a25f761851..0c0da8e124 100644
--- a/src/Symfony/Component/BrowserKit/CookieJar.php
+++ b/src/Symfony/Component/BrowserKit/CookieJar.php
@@ -149,7 +149,7 @@ class CookieJar
                     continue;
                 }
 
-                foreach ($namedCookies as $name => $cookie) {
+                foreach ($namedCookies as $cookie) {
                     if ($cookie->isSecure() && 'https' != $parts['scheme']) {
                         continue;
                     }
diff --git a/src/Symfony/Component/Console/Shell.php b/src/Symfony/Component/Console/Shell.php
index 77561a68bc..1eaa958184 100644
--- a/src/Symfony/Component/Console/Shell.php
+++ b/src/Symfony/Component/Console/Shell.php
@@ -107,10 +107,10 @@ EOF;
     /**
      * Tries to return autocompletion for the current entered text.
      *
-     * @param string  $text     The last segment of the entered text
-     * @param integer $position The current position
+     * @param string $text The last segment of the entered text
+     * @return Boolean|array A list of guessed strings or true
      */
-    private function autocompleter($text, $position)
+    private function autocompleter($text)
     {
         $info = readline_info();
         $text = substr($info['line_buffer'], 0, $info['end']);
diff --git a/src/Symfony/Component/DependencyInjection/Compiler/RemoveUnusedDefinitionsPass.php b/src/Symfony/Component/DependencyInjection/Compiler/RemoveUnusedDefinitionsPass.php
index f2dad69649..0c7be667a1 100644
--- a/src/Symfony/Component/DependencyInjection/Compiler/RemoveUnusedDefinitionsPass.php
+++ b/src/Symfony/Component/DependencyInjection/Compiler/RemoveUnusedDefinitionsPass.php
@@ -56,7 +56,7 @@ class RemoveUnusedDefinitionsPass implements RepeatablePassInterface
                     $sourceIds[] = $node->getId();
 
                     if ($node->isAlias()) {
-                        $referencingAlias[] = $node->getValue();
+                        $referencingAliases[] = $node->getValue();
                     }
                 }
                 $isReferenced = (count(array_unique($sourceIds)) - count($referencingAliases)) > 0;
diff --git a/src/Symfony/Component/DependencyInjection/Compiler/RepeatedPass.php b/src/Symfony/Component/DependencyInjection/Compiler/RepeatedPass.php
index 376201c9e8..d4af4310c1 100644
--- a/src/Symfony/Component/DependencyInjection/Compiler/RepeatedPass.php
+++ b/src/Symfony/Component/DependencyInjection/Compiler/RepeatedPass.php
@@ -50,7 +50,6 @@ class RepeatedPass implements CompilerPassInterface
      */
     public function process(ContainerBuilder $container)
     {
-        $compiler = $container->getCompiler();
         $this->repeat = false;
         foreach ($this->passes as $pass) {
             $pass->process($container);
diff --git a/src/Symfony/Component/DependencyInjection/Compiler/ResolveParameterPlaceHoldersPass.php b/src/Symfony/Component/DependencyInjection/Compiler/ResolveParameterPlaceHoldersPass.php
index 152ae52385..f6e4c85625 100644
--- a/src/Symfony/Component/DependencyInjection/Compiler/ResolveParameterPlaceHoldersPass.php
+++ b/src/Symfony/Component/DependencyInjection/Compiler/ResolveParameterPlaceHoldersPass.php
@@ -21,8 +21,6 @@ use Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException;
  */
 class ResolveParameterPlaceHoldersPass implements CompilerPassInterface
 {
-    private $parameterBag;
-
     /**
      * Processes the ContainerBuilder to resolve parameter placeholders.
      *
diff --git a/src/Symfony/Component/HttpKernel/Debug/Stopwatch.php b/src/Symfony/Component/HttpKernel/Debug/Stopwatch.php
index ef2ad8d1b6..cf2d10ee43 100644
--- a/src/Symfony/Component/HttpKernel/Debug/Stopwatch.php
+++ b/src/Symfony/Component/HttpKernel/Debug/Stopwatch.php
@@ -46,7 +46,7 @@ class Stopwatch
      */
     public function stopSection($id)
     {
-        $event = $this->stop('section');
+        $this->stop('section');
 
         if ($id) {
             $this->sections[$id] = $this->events;