diff --git a/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php b/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php
index a74ddac8b..2aaa30a44 100644
--- a/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php
+++ b/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php
@@ -406,7 +406,7 @@ class ClassMetadataFactory implements ClassMetadataFactoryInterface
      */
     private function addInheritedFields(ClassMetadata $subClass, ClassMetadata $parentClass)
     {
-        foreach ($parentClass->fieldMappings as $fieldName => $mapping) {
+        foreach ($parentClass->fieldMappings as $mapping) {
             if ( ! isset($mapping['inherited']) && ! $parentClass->isMappedSuperclass) {
                 $mapping['inherited'] = $parentClass->name;
             }
diff --git a/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php b/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
index eb50d1251..8c3dac229 100644
--- a/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
+++ b/lib/Doctrine/ORM/Mapping/ClassMetadataInfo.php
@@ -838,7 +838,7 @@ class ClassMetadataInfo implements ClassMetadata
      */
     public function validateAssocations()
     {
-        foreach ($this->associationMappings as $field => $mapping) {
+        foreach ($this->associationMappings as $mapping) {
             if ( ! \Doctrine\Common\ClassLoader::classExists($mapping['targetEntity']) ) {
                 throw MappingException::invalidTargetEntityClass($mapping['targetEntity'], $this->name, $mapping['fieldName']);
             }
diff --git a/lib/Doctrine/ORM/Mapping/Driver/AnnotationDriver.php b/lib/Doctrine/ORM/Mapping/Driver/AnnotationDriver.php
index 94a624c0a..22a1250ba 100644
--- a/lib/Doctrine/ORM/Mapping/Driver/AnnotationDriver.php
+++ b/lib/Doctrine/ORM/Mapping/Driver/AnnotationDriver.php
@@ -328,7 +328,7 @@ class AnnotationDriver implements Driver
                     $metadata->setIdGeneratorType(constant('Doctrine\ORM\Mapping\ClassMetadata::GENERATOR_TYPE_' . $generatedValueAnnot->strategy));
                 }
 
-                if ($versionAnnot = $this->_reader->getPropertyAnnotation($property, 'Doctrine\ORM\Mapping\Version')) {
+                if ($this->_reader->getPropertyAnnotation($property, 'Doctrine\ORM\Mapping\Version')) {
                     $metadata->setVersionMapping($mapping);
                 }
 
@@ -341,7 +341,7 @@ class AnnotationDriver implements Driver
                         'allocationSize' => $seqGeneratorAnnot->allocationSize,
                         'initialValue' => $seqGeneratorAnnot->initialValue
                     ));
-                } else if ($tblGeneratorAnnot = $this->_reader->getPropertyAnnotation($property, 'Doctrine\ORM\Mapping\TableGenerator')) {
+                } else if ($this->_reader->getPropertyAnnotation($property, 'Doctrine\ORM\Mapping\TableGenerator')) {
                     throw MappingException::tableIdGeneratorNotImplemented($className);
                 } else if ($customGeneratorAnnot = $this->_reader->getPropertyAnnotation($property, 'Doctrine\ORM\Mapping\CustomIdGenerator')) {
                     $metadata->setCustomGeneratorDefinition(array(
diff --git a/lib/Doctrine/ORM/Mapping/Driver/StaticPHPDriver.php b/lib/Doctrine/ORM/Mapping/Driver/StaticPHPDriver.php
index 4e593ea8c..283ec7c5b 100644
--- a/lib/Doctrine/ORM/Mapping/Driver/StaticPHPDriver.php
+++ b/lib/Doctrine/ORM/Mapping/Driver/StaticPHPDriver.php
@@ -103,7 +103,7 @@ class StaticPHPDriver implements Driver
             );
 
             foreach ($iterator as $file) {
-                if (($fileName = $file->getBasename($this->_fileExtension)) == $file->getBasename()) {
+                if ($file->getBasename($this->_fileExtension) == $file->getBasename()) {
                     continue;
                 }
 
diff --git a/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php b/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
index 673d97496..d2638bea5 100644
--- a/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
+++ b/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php
@@ -498,7 +498,6 @@ class BasicEntityPersister
                 continue;
             }
 
-            $oldVal = $change[0];
             $newVal = $change[1];
 
             if (isset($this->_class->associationMappings[$field])) {
@@ -711,7 +710,6 @@ class BasicEntityPersister
      */
     public function loadAll(array $criteria = array(), array $orderBy = null, $limit = null, $offset = null)
     {
-        $entities = array();
         $sql = $this->_getSelectEntitiesSQL($criteria, null, 0, $limit, $offset, $orderBy);
         list($params, $types) = $this->expandParameters($criteria);
         $stmt = $this->_conn->executeQuery($sql, $params, $types);
@@ -995,7 +993,7 @@ class BasicEntityPersister
                 $assocAlias = 'e' . ($eagerAliasCounter++);
                 $this->_rsm->addJoinedEntityResult($assoc['targetEntity'], $assocAlias, 'r', $assocField);
 
-                foreach ($eagerEntity->fieldNames AS $field) {
+                foreach ($eagerEntity->fieldNames as $field) {
                     if ($columnList) $columnList .= ', ';
 
                     $columnList .= $this->_getSelectColumnSQL($field, $eagerEntity, $assocAlias);
@@ -1016,7 +1014,7 @@ class BasicEntityPersister
                     $this->_selectJoinSql .= ' ' . $eagerEntity->getQuotedTableName($this->_platform) . ' ' . $this->_getSQLTableAlias($eagerEntity->name, $assocAlias) .' ON ';
 
                     $tableAlias = $this->_getSQLTableAlias($assoc['targetEntity'], $assocAlias);
-                    foreach ($assoc['sourceToTargetKeyColumns'] AS $sourceCol => $targetCol) {
+                    foreach ($assoc['sourceToTargetKeyColumns'] as $sourceCol => $targetCol) {
                         if ( ! $first) {
                             $this->_selectJoinSql .= ' AND ';
                         }
@@ -1037,7 +1035,7 @@ class BasicEntityPersister
                     $this->_selectJoinSql .= ' ' . $eagerEntity->getQuotedTableName($this->_platform) . ' '
                                            . $this->_getSQLTableAlias($eagerEntity->name, $assocAlias) . ' ON ';
 
-                    foreach ($owningAssoc['sourceToTargetKeyColumns'] AS $sourceCol => $targetCol) {
+                    foreach ($owningAssoc['sourceToTargetKeyColumns'] as $sourceCol => $targetCol) {
                         if ( ! $first) {
                             $this->_selectJoinSql .= ' AND ';
                         }
@@ -1139,7 +1137,7 @@ class BasicEntityPersister
                 $columns = array_unique($columns);
 
                 $values = array();
-                foreach ($columns AS $column) {
+                foreach ($columns as $column) {
                     $placeholder = '?';
 
                     if (isset($this->_class->fieldNames[$column]) &&
@@ -1267,7 +1265,7 @@ class BasicEntityPersister
 
         list($params, $types) = $this->expandParameters($criteria);
 
-        $stmt = $this->_conn->executeQuery($sql, $params, $types);
+        $this->_conn->executeQuery($sql, $params, $types);
     }
 
     /**
@@ -1418,7 +1416,7 @@ class BasicEntityPersister
     {
         $params = $types = array();
 
-        foreach ($criteria AS $field => $value) {
+        foreach ($criteria as $field => $value) {
             if ($value === null) {
                 continue; // skip null values.
             }
@@ -1539,7 +1537,7 @@ class BasicEntityPersister
             $sql .= ' AND ' . $filterSql;
         }
 
-        list($params, $types) = $this->expandParameters($criteria);
+        list($params) = $this->expandParameters($criteria);
 
         return (bool) $this->_conn->fetchColumn($sql, $params);
     }
diff --git a/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php b/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php
index daef03774..c7dc08dff 100644
--- a/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php
+++ b/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php
@@ -180,7 +180,7 @@ class ManyToManyPersister extends AbstractCollectionPersister
         // Composite identifier
         $sourceClass = $this->_em->getClassMetadata(get_class($mapping->getOwner()));
 
-        foreach ($mapping['relationToSourceKeyColumns'] as $relColumn => $srcColumn) {
+        foreach ($mapping['relationToSourceKeyColumns'] as $srcColumn) {
             $params[] = $identifier[$sourceClass->fieldNames[$srcColumn]];
         }
 
diff --git a/lib/Doctrine/ORM/Proxy/ProxyFactory.php b/lib/Doctrine/ORM/Proxy/ProxyFactory.php
index 92a51481c..61c697f62 100644
--- a/lib/Doctrine/ORM/Proxy/ProxyFactory.php
+++ b/lib/Doctrine/ORM/Proxy/ProxyFactory.php
@@ -397,7 +397,7 @@ class <proxyClassName> extends \<className> implements \Doctrine\ORM\Proxy\Proxy
             if ($original === null) {
                 throw new \Doctrine\ORM\EntityNotFoundException();
             }
-            foreach ($class->reflFields AS $field => $reflProperty) {
+            foreach ($class->reflFields as $field => $reflProperty) {
                 $reflProperty->setValue($this, $reflProperty->getValue($original));
             }
             unset($this->_entityPersister, $this->_identifier);
diff --git a/lib/Doctrine/ORM/Query/AST/Functions/IdentityFunction.php b/lib/Doctrine/ORM/Query/AST/Functions/IdentityFunction.php
index 1b7592990..84e04a10b 100644
--- a/lib/Doctrine/ORM/Query/AST/Functions/IdentityFunction.php
+++ b/lib/Doctrine/ORM/Query/AST/Functions/IdentityFunction.php
@@ -39,7 +39,6 @@ class IdentityFunction extends FunctionNode
      */
     public function getSql(\Doctrine\ORM\Query\SqlWalker $sqlWalker)
     {
-        $platform   = $sqlWalker->getConnection()->getDatabasePlatform();
         $dqlAlias   = $this->pathExpression->identificationVariable;
         $assocField = $this->pathExpression->field;
 
diff --git a/lib/Doctrine/ORM/Query/AST/Functions/SizeFunction.php b/lib/Doctrine/ORM/Query/AST/Functions/SizeFunction.php
index 3decb918e..52173c406 100644
--- a/lib/Doctrine/ORM/Query/AST/Functions/SizeFunction.php
+++ b/lib/Doctrine/ORM/Query/AST/Functions/SizeFunction.php
@@ -109,8 +109,6 @@ class SizeFunction extends FunctionNode
      */
     public function parse(\Doctrine\ORM\Query\Parser $parser)
     {
-        $lexer = $parser->getLexer();
-
         $parser->match(Lexer::T_SIZE);
         $parser->match(Lexer::T_OPEN_PARENTHESIS);
 
diff --git a/lib/Doctrine/ORM/Query/Parser.php b/lib/Doctrine/ORM/Query/Parser.php
index bbb91c040..7b9a67135 100644
--- a/lib/Doctrine/ORM/Query/Parser.php
+++ b/lib/Doctrine/ORM/Query/Parser.php
@@ -413,26 +413,6 @@ class Parser
         throw QueryException::semanticalError($message);
     }
 
-    /**
-     * Peeks beyond the specified token and returns the first token after that one.
-     *
-     * @param array $token
-     * @return array
-     */
-    private function _peekBeyond($token)
-    {
-        $peek = $this->_lexer->peek();
-
-        while ($peek['value'] != $token) {
-            $peek = $this->_lexer->peek();
-        }
-
-        $peek = $this->_lexer->peek();
-        $this->_lexer->resetPeek();
-
-        return $peek;
-    }
-
     /**
      * Peek beyond the matched closing parenthesis and return the first token after that one.
      *
@@ -601,7 +581,7 @@ class Parser
             // Check if queryComponent points to an AbstractSchemaName or a ResultVariable
             if ( ! isset($qComp['resultVariable'])) {
                 $this->semanticalError(
-                    "'$identVariable' does not point to a ResultVariable.", $deferredItem['token']
+                    "'$resultVariable' does not point to a ResultVariable.", $deferredItem['token']
                 );
             }
 
@@ -652,8 +632,8 @@ class Parser
                 $assoc = $class->associationMappings[$field];
 
                 $fieldType = ($assoc['type'] & ClassMetadata::TO_ONE)
-                	? AST\PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION
-                	: AST\PathExpression::TYPE_COLLECTION_VALUED_ASSOCIATION;
+                    ? AST\PathExpression::TYPE_SINGLE_VALUED_ASSOCIATION
+                    : AST\PathExpression::TYPE_COLLECTION_VALUED_ASSOCIATION;
             }
 
             // Validate if PathExpression is one of the expected types
@@ -700,7 +680,7 @@ class Parser
 
         $foundRootEntity = false;
 
-        foreach ($this->_identVariableExpressions AS $dqlAlias => $expr) {
+        foreach ($this->_identVariableExpressions as $dqlAlias => $expr) {
             if (isset($this->_queryComponents[$dqlAlias]) && $this->_queryComponents[$dqlAlias]['parent'] === null) {
                 $foundRootEntity = true;
             }
@@ -905,7 +885,6 @@ class Parser
      */
     public function JoinAssociationPathExpression()
     {
-        $token         = $this->_lexer->lookahead;
         $identVariable = $this->IdentificationVariable();
 
         if ( ! isset($this->_queryComponents[$identVariable])) {
@@ -941,7 +920,6 @@ class Parser
      */
     public function PathExpression($expectedTypes)
     {
-        $token = $this->_lexer->lookahead;
         $identVariable = $this->IdentificationVariable();
         $field = null;
 
@@ -1451,7 +1429,7 @@ class Parser
      */
     public function SubselectIdentificationVariableDeclaration()
     {
-        $glimpse = $this->_lexer->glimpse();
+        $this->_lexer->glimpse();
 
         /* NOT YET IMPLEMENTED!
 
@@ -2743,7 +2721,7 @@ class Parser
      */
     public function ComparisonExpression()
     {
-        $peek = $this->_lexer->glimpse();
+        $this->_lexer->glimpse();
 
         $leftExpr  = $this->ArithmeticExpression();
         $operator  = $this->ComparisonOperator();
diff --git a/lib/Doctrine/ORM/Tools/Console/Command/InfoCommand.php b/lib/Doctrine/ORM/Tools/Console/Command/InfoCommand.php
index 77458cf13..820cab128 100644
--- a/lib/Doctrine/ORM/Tools/Console/Command/InfoCommand.php
+++ b/lib/Doctrine/ORM/Tools/Console/Command/InfoCommand.php
@@ -68,7 +68,7 @@ EOT
 
         foreach ($entityClassNames as $entityClassName) {
             try {
-                $cm = $entityManager->getClassMetadata($entityClassName);
+                $entityManager->getClassMetadata($entityClassName);
                 $output->writeln(sprintf("<info>[OK]</info>   %s", $entityClassName));
             } catch (MappingException $e) {
                 $output->writeln("<error>[FAIL]</error> ".$entityClassName);
diff --git a/lib/Doctrine/ORM/Tools/DebugUnitOfWorkListener.php b/lib/Doctrine/ORM/Tools/DebugUnitOfWorkListener.php
index 0548b9644..2688c0f8a 100644
--- a/lib/Doctrine/ORM/Tools/DebugUnitOfWorkListener.php
+++ b/lib/Doctrine/ORM/Tools/DebugUnitOfWorkListener.php
@@ -70,14 +70,14 @@ class DebugUnitOfWorkListener
         }
 
         fwrite($fh, "Flush Operation [".$this->context."] - Dumping identity map:\n");
-        foreach ($identityMap AS $className => $map) {
+        foreach ($identityMap as $className => $map) {
             fwrite($fh, "Class: ". $className . "\n");
-            foreach ($map AS $idHash => $entity) {
+            foreach ($map as $entity) {
                 fwrite($fh, " Entity: " . $this->getIdString($entity, $uow) . " " . spl_object_hash($entity)."\n");
                 fwrite($fh, "  Associations:\n");
 
                 $cm = $em->getClassMetadata($className);
-                foreach ($cm->associationMappings AS $field => $assoc) {
+                foreach ($cm->associationMappings as $field => $assoc) {
                     fwrite($fh, "   " . $field . " ");
                     $value = $cm->reflFields[$field]->getValue($entity);
 
@@ -97,12 +97,12 @@ class DebugUnitOfWorkListener
                             fwrite($fh, " NULL\n");
                         } else if ($initialized) {
                             fwrite($fh, "[INITIALIZED] " . $this->getType($value). " " . count($value) . " elements\n");
-                            foreach ($value AS $obj) {
+                            foreach ($value as $obj) {
                                 fwrite($fh, "    " . $this->getIdString($obj, $uow) . " " . spl_object_hash($obj)."\n");
                             }
                         } else {
                             fwrite($fh, "[PROXY] " . $this->getType($value) . " unknown element size\n");
-                            foreach ($value->unwrap() AS $obj) {
+                            foreach ($value->unwrap() as $obj) {
                                 fwrite($fh, "    " . $this->getIdString($obj, $uow) . " " . spl_object_hash($obj)."\n");
                             }
                         }
@@ -128,7 +128,7 @@ class DebugUnitOfWorkListener
         if ($uow->isInIdentityMap($entity)) {
             $ids = $uow->getEntityIdentifier($entity);
             $idstring = "";
-            foreach ($ids AS $k => $v) {
+            foreach ($ids as $k => $v) {
                 $idstring .= $k."=".$v;
             }
         } else {
diff --git a/lib/Doctrine/ORM/Tools/EntityGenerator.php b/lib/Doctrine/ORM/Tools/EntityGenerator.php
index a6d52175a..448ff6869 100644
--- a/lib/Doctrine/ORM/Tools/EntityGenerator.php
+++ b/lib/Doctrine/ORM/Tools/EntityGenerator.php
@@ -430,7 +430,7 @@ public function <methodName>()
 
         $collections = array();
 
-        foreach ($metadata->associationMappings AS $mapping) {
+        foreach ($metadata->associationMappings as $mapping) {
             if ($mapping['type'] & ClassMetadataInfo::TO_MANY) {
                 $collections[] = '$this->'.$mapping['fieldName'].' = new \Doctrine\Common\Collections\ArrayCollection();';
             }
diff --git a/lib/Doctrine/ORM/Tools/Export/Driver/YamlExporter.php b/lib/Doctrine/ORM/Tools/Export/Driver/YamlExporter.php
index 2d16792b1..457a0430e 100644
--- a/lib/Doctrine/ORM/Tools/Export/Driver/YamlExporter.php
+++ b/lib/Doctrine/ORM/Tools/Export/Driver/YamlExporter.php
@@ -115,7 +115,7 @@ class YamlExporter extends AbstractExporter
         }
 
         if ($idGeneratorType = $this->_getIdGeneratorTypeString($metadata->generatorType)) {
-            $ids[$metadata->getSingleIdentifierFieldName()]['generator']['strategy'] = $this->_getIdGeneratorTypeString($metadata->generatorType);
+            $ids[$metadata->getSingleIdentifierFieldName()]['generator']['strategy'] = $idGeneratorType;
         }
 
         if ($ids) {
@@ -129,7 +129,6 @@ class YamlExporter extends AbstractExporter
             $array['fields'] = array_merge($array['fields'], $fieldMappings);
         }
 
-        $associations = array();
         foreach ($metadata->associationMappings as $name => $associationMapping) {
             $cascade = array();
             if ($associationMapping['isCascadeRemove']) {
diff --git a/lib/Doctrine/ORM/Tools/ResolveTargetEntityListener.php b/lib/Doctrine/ORM/Tools/ResolveTargetEntityListener.php
index 621214fdd..afdd334f8 100644
--- a/lib/Doctrine/ORM/Tools/ResolveTargetEntityListener.php
+++ b/lib/Doctrine/ORM/Tools/ResolveTargetEntityListener.php
@@ -61,7 +61,7 @@ class ResolveTargetEntityListener
     public function loadClassMetadata(LoadClassMetadataEventArgs $args)
     {
         $cm = $args->getClassMetadata();
-        foreach ($cm->associationMappings as $assocName => $mapping) {
+        foreach ($cm->associationMappings as $mapping) {
             if (isset($this->resolveTargetEntities[$mapping['targetEntity']])) {
                 $this->remapAssociation($cm, $mapping);
             }