Rector: CQ - UnusedForeachValueToArrayKeysRector

app/code/core/Mage/Adminhtml/Block/Dashboard/Graph.php

@@ -215,7 +215,7 @@ public function getChartUrl($directUrl = true)
                     $dateStart->addMonth(1);
                     break;
             }
-            foreach ($this->getAllSeries() as $index => $serie) {
+            foreach (array_keys($this->getAllSeries()) as $index) {
                 if (in_array($d, $this->_axisLabels['x'])) {
                     $datas[$index][] = (float)array_shift($this->_allSeries[$index]);
                 } else {
@@ -328,7 +328,7 @@ public function getChartUrl($directUrl = true)
         if (count($this->_axisLabels)) {
             $params['chxt'] = implode(',', array_keys($this->_axisLabels));
             $indexid = 0;
-            foreach ($this->_axisLabels as $idx => $labels) {
+            foreach (array_keys($this->_axisLabels) as $idx) {
                 if ($idx === 'x') {
                     /**
                      * Format date

app/code/core/Mage/Adminhtml/Block/Page/Menu.php

@@ -164,10 +164,8 @@ protected function _buildMenuArray(Varien_Simplexml_Element $parent, $path = '',
 
         uasort($parentArr, [$this, '_sortMenu']);
 
-        foreach ($parentArr as $key => $value) {
-            $last = $key;
-        }
-        if (isset($last)) {
+        $last = array_key_last($parentArr);
+        if (!is_null($last)) {
             $parentArr[$last]['last'] = true;
         }
 

app/code/core/Mage/Adminhtml/Block/Report/Grid.php

@@ -207,7 +207,7 @@ protected function _prepareCollection()
      */
     protected function _setFilterValues($data)
     {
-        foreach ($data as $name => $value) {
+        foreach (array_keys($data) as $name) {
             $this->setFilter($name, $data[$name]);
         }
         return $this;

app/code/core/Mage/Adminhtml/Block/Sales/Transactions/Child/Grid.php

@@ -62,7 +62,7 @@ protected function _prepareColumns()
     {
         $result = parent::_prepareColumns();
 
-        foreach ($this->_columns as $key => $value) {
+        foreach (array_keys($this->_columns) as $key) {
             if (in_array($key, $this->_columnsToRemove)) {
                 unset($this->_columns[$key]);
             } else {

app/code/core/Mage/Adminhtml/Block/Store/Switcher.php

@@ -73,7 +73,7 @@ public function getWebsites()
     {
         $websites = Mage::app()->getWebsites();
         if ($websiteIds = $this->getWebsiteIds()) {
-            foreach ($websites as $websiteId => $website) {
+            foreach (array_keys($websites) as $websiteId) {
                 if (!in_array($websiteId, $websiteIds)) {
                     unset($websites[$websiteId]);
                 }
@@ -140,7 +140,7 @@ public function getStores($group)
         }
         $stores = $group->getStores();
         if ($storeIds = $this->getStoreIds()) {
-            foreach ($stores as $storeId => $store) {
+            foreach (array_keys($stores) as $storeId) {
                 if (!in_array($storeId, $storeIds)) {
                     unset($stores[$storeId]);
                 }

app/code/core/Mage/Adminhtml/Block/Urlrewrite/Edit.php

@@ -194,7 +194,7 @@ public function getButtonsHtml($area = null)
     {
         if ($this->_buttonsHtml === null) {
             $this->_buttonsHtml = parent::getButtonsHtml();
-            foreach ($this->_children as $alias => $child) {
+            foreach (array_keys($this->_children) as $alias) {
                 if (str_contains($alias, '_button')) {
                     $this->unsetChild($alias);
                 }

app/code/core/Mage/Adminhtml/Block/Urlrewrite/Edit/Form.php

@@ -61,7 +61,7 @@ protected function _prepareForm()
             'description'  => $model->getDescription(),
         ];
         if ($sessionData = Mage::getSingleton('adminhtml/session')->getData('urlrewrite_data', true)) {
-            foreach ($formValues as $key => $value) {
+            foreach (array_keys($formValues) as $key) {
                 if (isset($sessionData[$key])) {
                     $formValues[$key] = $sessionData[$key];
                 }

app/code/core/Mage/Adminhtml/Block/Widget/Grid.php

@@ -481,7 +481,7 @@ public function getColumns()
      */
     protected function _setFilterValues($data)
     {
-        foreach ($data as $columnId => $value) {
+        foreach (array_keys($data) as $columnId) {
             $column = $this->getColumn($columnId);
             if ($column instanceof Mage_Adminhtml_Block_Widget_Grid_Column
                 && (!empty($data[$columnId]) || strlen($data[$columnId]) > 0)

app/code/core/Mage/Adminhtml/Block/Widget/Grid/Column/Renderer/Action.php

@@ -109,7 +109,7 @@ protected function _toLinkHtml($action, Varien_Object $row)
      */
     protected function _transformActionData(&$action, &$actionCaption, Varien_Object $row)
     {
-        foreach ($action as $attribute => $value) {
+        foreach (array_keys($action) as $attribute) {
             if (isset($action[$attribute]) && !is_array($action[$attribute])) {
                 $this->getColumn()->setFormat($action[$attribute]);
                 $action[$attribute] = parent::render($row);

app/code/core/Mage/Adminhtml/Block/Widget/Tabs.php

@@ -256,7 +256,7 @@ protected function _reorderTabs()
         asort($this->_tabPositions);
 
         $ordered = [];
-        foreach ($this->_tabPositions as $tabId => $position) {
+        foreach (array_keys($this->_tabPositions) as $tabId) {
             if (isset($this->_tabs[$tabId])) {
                 $tab = $this->_tabs[$tabId];
                 $ordered[$tabId] = $tab;

app/code/core/Mage/Adminhtml/Model/System/Config/Source/Admin/Page.php

@@ -109,10 +109,8 @@ protected function _buildMenuArray(?Varien_Simplexml_Element $parent = null, $pa
 
         uasort($parentArr, [$this, '_sortMenu']);
 
-        foreach ($parentArr as $key => $value) {
-            $last = $key;
-        }
-        if (isset($last)) {
+        $last = array_key_last($parentArr);
+        if (!is_null($last)) {
             $parentArr[$last]['last'] = true;
         }
 

app/code/core/Mage/Api2/Model/Acl/Filter.php

@@ -61,7 +61,7 @@ public function __construct(Mage_Api2_Model_Resource $resource)
      */
     protected function _filter(array $allowedAttributes, array $data)
     {
-        foreach ($data as $attribute => $value) {
+        foreach (array_keys($data) as $attribute) {
             if (!in_array($attribute, $allowedAttributes)) {
                 unset($data[$attribute]);
             }

app/code/core/Mage/Api2/Model/Acl/Filter/Attribute/ResourcePermission.php

@@ -103,7 +103,7 @@ public function getResourcesPermissions()
                             $resourceModel->setResourceType($resource)
                                 ->setUserType($this->_userType);
 
-                            foreach ($operations as $operation => $operationLabel) {
+                            foreach (array_keys($operations) as $operation) {
                                 if (!$this->_hasEntityOnlyAttributes
                                     && $config->getResourceEntityOnlyAttributes($resource, $this->_userType, $operation)
                                 ) {

app/code/core/Mage/Catalog/Model/Api2/Product.php

@@ -42,7 +42,7 @@ public function getAvailableAttributes($userType, $operation)
         }
         $excludedAttrs = $this->getExcludedAttributes($userType, $operation);
         $includedAttrs = $this->getIncludedAttributes($userType, $operation);
-        foreach ($attributes as $code => $label) {
+        foreach (array_keys($attributes) as $code) {
             if (in_array($code, $excludedAttrs) || ($includedAttrs && !in_array($code, $includedAttrs))) {
                 unset($attributes[$code]);
             }

app/code/core/Mage/Catalog/Model/Category.php

@@ -346,7 +346,7 @@ public function getAttributes($noDesignAttributes = false)
             ->getSortedAttributes();
 
         if ($noDesignAttributes) {
-            foreach ($result as $k => $a) {
+            foreach (array_keys($result) as $k) {
                 if (in_array($k, $this->_designAttributes)) {
                     unset($result[$k]);
                 }

app/code/core/Mage/Catalog/Model/Product/Type/Price.php

@@ -300,7 +300,7 @@ public function getFormatedTierPrice($qty, $product)
     {
         $price = $product->getTierPrice($qty);
         if (is_array($price)) {
-            foreach ($price as $index => $value) {
+            foreach (array_keys($price) as $index) {
                 $price[$index]['formated_price'] = Mage::app()->getStore()->convertPrice(
                     $price[$index]['website_price'],
                     true

app/code/core/Mage/Catalog/Model/Resource/Category/Flat.php

@@ -1152,7 +1152,7 @@ protected function _prepareDataForAllFields($category, $replaceFields = [])
         $table = $this->_getReadAdapter()->describeTable($table);
         $data = [];
         $idFieldName = Mage::getSingleton('catalog/category')->getIdFieldName();
-        foreach ($table as $column => $columnData) {
+        foreach (array_keys($table) as $column) {
             if ($column != $idFieldName || $category->getData($column) !== null) {
                 if (array_key_exists($column, $replaceFields)) {
                     $value = $category->getData($replaceFields[$column]);

app/code/core/Mage/Checkout/Model/Type/Onepage.php

@@ -119,7 +119,7 @@ public function initCheckout()
         $checkout = $this->getCheckout();
         $customerSession = $this->getCustomerSession();
         if (is_array($checkout->getStepData())) {
-            foreach ($checkout->getStepData() as $step => $data) {
+            foreach (array_keys($checkout->getStepData()) as $step) {
                 if (!($step === 'login' || $customerSession->isLoggedIn() && $step === 'billing')) {
                     $checkout->setStepData($step, 'allow', false);
                 }

app/code/core/Mage/ConfigurableSwatches/Helper/Mediafallback.php

@@ -136,7 +136,7 @@ public function attachProductChildrenAttributeMapping(array $parentProducts, $st
                 } // end looping child products
             } // end looping attributes
 
-            foreach ($mapping as $key => $value) {
+            foreach (array_keys($mapping) as $key) {
                 $mapping[$key]['product_ids'] = array_unique($mapping[$key]['product_ids']);
             }
 

app/code/core/Mage/Core/Helper/Data.php

@@ -603,7 +603,7 @@ public function assocToXml(array $array, $rootName = '_')
 <$rootName></$rootName>
 XML;
         $xml = new SimpleXMLElement($xmlstr);
-        foreach ($array as $key => $value) {
+        foreach (array_keys($array) as $key) {
             if (is_numeric($key)) {
                 throw new Exception('Array root keys must not be numeric.');
             }

app/code/core/Mage/Core/Model/Cache.php

@@ -625,7 +625,7 @@ public function getInvalidatedTypes()
         $types = $this->_getInvalidatedTypes();
         if ($types) {
             $allTypes = $this->getTypes();
-            foreach ($types as $type => $flag) {
+            foreach (array_keys($types) as $type) {
                 if (isset($allTypes[$type]) && $this->canUse($type)) {
                     $invalidatedTypes[$type] = $allTypes[$type];
                 }

app/code/core/Mage/Core/Model/Layout/Validator.php

@@ -108,7 +108,7 @@ public function getDisallowedBlocks()
         if (!count($this->_disallowedBlock)) {
             $disallowedBlockConfig = $this->_getDisallowedBlockConfigValue();
             if (is_array($disallowedBlockConfig)) {
-                foreach ($disallowedBlockConfig as $blockName => $value) {
+                foreach (array_keys($disallowedBlockConfig) as $blockName) {
                     $this->_disallowedBlock[] = $blockName;
                 }
             }

app/code/core/Mage/Core/Model/Locale.php

@@ -247,7 +247,7 @@ protected function _getOptionLocales($translatedName = false)
             }
         }
 
-        foreach ($locales as $code => $active) {
+        foreach (array_keys($locales) as $code) {
             if (strstr($code, '_')) {
                 if (!in_array($code, $allowed)) {
                     continue;

app/code/core/Mage/Core/Model/Log/Adapter.php

@@ -115,7 +115,7 @@ public function setFilterDataKeys($keys)
     protected function _filterDebugData($debugData)
     {
         if (is_array($debugData) && is_array($this->_debugReplacePrivateDataKeys)) {
-            foreach ($debugData as $key => $value) {
+            foreach (array_keys($debugData) as $key) {
                 if (in_array($key, $this->_debugReplacePrivateDataKeys)) {
                     $debugData[$key] = '****';
                 } else {

app/code/core/Mage/Core/Model/Url/Rewrite.php

@@ -319,7 +319,7 @@ protected function _getQueryString()
             $queryParams = [];
             parse_str($_SERVER['QUERY_STRING'], $queryParams);
             $hasChanges = false;
-            foreach ($queryParams as $key => $value) {
+            foreach (array_keys($queryParams) as $key) {
                 if (substr($key, 0, 3) === '___') {
                     unset($queryParams[$key]);
                     $hasChanges = true;

app/code/core/Mage/Core/Model/Url/Rewrite/Request.php

@@ -306,7 +306,7 @@ protected function _getQueryString()
             $queryParams = [];
             parse_str($_SERVER['QUERY_STRING'], $queryParams);
             $hasChanges = false;
-            foreach ($queryParams as $key => $value) {
+            foreach (array_keys($queryParams) as $key) {
                 if (substr($key, 0, 3) === '___') {
                     unset($queryParams[$key]);
                     $hasChanges = true;

app/code/core/Mage/Customer/Model/Address/Api.php

@@ -55,7 +55,7 @@ public function items($customerId)
                 $row[$attributeAlias] = $data[$attributeCode] ?? null;
             }
 
-            foreach ($this->getAllowedAttributes($address) as $attributeCode => $attribute) {
+            foreach (array_keys($this->getAllowedAttributes($address)) as $attributeCode) {
                 if (isset($data[$attributeCode])) {
                     $row[$attributeCode] = $data[$attributeCode];
                 }
@@ -89,7 +89,7 @@ public function create($customerId, $addressData)
 
         $address = Mage::getModel('customer/address');
 
-        foreach ($this->getAllowedAttributes($address) as $attributeCode => $attribute) {
+        foreach (array_keys($this->getAllowedAttributes($address)) as $attributeCode) {
             if (isset($addressData[$attributeCode])) {
                 $address->setData($attributeCode, $addressData[$attributeCode]);
             }
@@ -141,7 +141,7 @@ public function info($addressId)
             $result[$attributeAlias] = $address->getData($attributeCode);
         }
 
-        foreach ($this->getAllowedAttributes($address) as $attributeCode => $attribute) {
+        foreach (array_keys($this->getAllowedAttributes($address)) as $attributeCode) {
             $result[$attributeCode] = $address->getData($attributeCode);
         }
 
@@ -169,7 +169,7 @@ public function update($addressId, $addressData)
             $this->_fault('not_exists');
         }
 
-        foreach ($this->getAllowedAttributes($address) as $attributeCode => $attribute) {
+        foreach (array_keys($this->getAllowedAttributes($address)) as $attributeCode) {
             if (isset($addressData[$attributeCode])) {
                 $address->setData($attributeCode, $addressData[$attributeCode]);
             }

app/code/core/Mage/Customer/Model/Address/Api/V2.php

@@ -40,7 +40,7 @@ public function create($customerId, $addressData)
 
         $address = Mage::getModel('customer/address');
 
-        foreach ($this->getAllowedAttributes($address) as $attributeCode => $attribute) {
+        foreach (array_keys($this->getAllowedAttributes($address)) as $attributeCode) {
             if (isset($addressData->$attributeCode)) {
                 $address->setData($attributeCode, $addressData->$attributeCode);
             }
@@ -92,7 +92,7 @@ public function info($addressId)
             $result[$attributeAlias] = $address->getData($attributeCode);
         }
 
-        foreach ($this->getAllowedAttributes($address) as $attributeCode => $attribute) {
+        foreach (array_keys($this->getAllowedAttributes($address)) as $attributeCode) {
             $result[$attributeCode] = $address->getData($attributeCode);
         }
 
@@ -120,7 +120,7 @@ public function update($addressId, $addressData)
             $this->_fault('not_exists');
         }
 
-        foreach ($this->getAllowedAttributes($address) as $attributeCode => $attribute) {
+        foreach (array_keys($this->getAllowedAttributes($address)) as $attributeCode) {
             if (isset($addressData->$attributeCode)) {
                 $address->setData($attributeCode, $addressData->$attributeCode);
             }

app/code/core/Mage/Customer/Model/Customer/Api.php

@@ -87,7 +87,7 @@ public function info($customerId, $attributes = null)
             $result[$attributeAlias] = $customer->getData($attributeCode);
         }
 
-        foreach ($this->getAllowedAttributes($customer, $attributes) as $attributeCode => $attribute) {
+        foreach (array_keys($this->getAllowedAttributes($customer, $attributes)) as $attributeCode) {
             $result[$attributeCode] = $customer->getData($attributeCode);
         }
 
@@ -121,7 +121,7 @@ public function items($filters)
             foreach ($this->_mapAttributes as $attributeAlias => $attributeCode) {
                 $row[$attributeAlias] = $data[$attributeCode] ?? null;
             }
-            foreach ($this->getAllowedAttributes($customer) as $attributeCode => $attribute) {
+            foreach (array_keys($this->getAllowedAttributes($customer)) as $attributeCode) {
                 if (isset($data[$attributeCode])) {
                     $row[$attributeCode] = $data[$attributeCode];
                 }
@@ -149,7 +149,7 @@ public function update($customerId, $customerData)
             $this->_fault('not_exists');
         }
 
-        foreach ($this->getAllowedAttributes($customer) as $attributeCode => $attribute) {
+        foreach (array_keys($this->getAllowedAttributes($customer)) as $attributeCode) {
             if (isset($customerData[$attributeCode])) {
                 $customer->setData($attributeCode, $customerData[$attributeCode]);
             }

app/code/core/Mage/Dataflow/Model/Batch.php

@@ -92,12 +92,12 @@ public function getFieldList()
      */
     public function parseFieldList($row)
     {
-        foreach ($row as $fieldName => $value) {
+        foreach (array_keys($row) as $fieldName) {
             if (!in_array($fieldName, $this->_fieldList)) {
                 $this->_fieldList[$fieldName] = $fieldName;
             }
         }
-        unset($fieldName, $value, $row);
+        unset($fieldName, $row);
     }
 
     /**

app/code/core/Mage/Dataflow/Model/Session/Parser/Csv.php

@@ -47,7 +47,7 @@ public function parse()
                     $fields = $line;
                     continue;
                 } else {
-                    foreach ($line as $j => $f) {
+                    foreach (array_keys($line) as $j) {
                         $fields[$j] = 'column' . ($j + 1);
                     }
                 }

app/code/core/Mage/Eav/Model/Entity/Abstract.php

@@ -1594,7 +1594,7 @@ public function delete($object)
             ];
             $this->_getWriteAdapter()->delete($this->getEntityTable(), $where);
             $this->loadAllAttributes($object);
-            foreach ($this->getAttributesByTable() as $table => $attributes) {
+            foreach (array_keys($this->getAttributesByTable()) as $table) {
                 $this->_getWriteAdapter()->delete($table, $where);
             }
         } catch (Exception $e) {