Fixes core and lib issues for PHP 8.0 compatibility (#1391)

* Fixes core and lib issues for PHP 8.0 compatibility

* Zend_Xml_Security: PHP8 fixes for version_compare

Author: lamskoy

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

@@ -124,7 +124,7 @@ protected function _buildMenuArray(Varien_Simplexml_Element $parent=null, $path=
 
         uasort($parentArr, array($this, '_sortMenu'));
 
-        while (list($key, $value) = each($parentArr)) {
+        foreach ($parentArr as $key => $value) {
             $last = $key;
         }
         if (isset($last)) {

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

@@ -718,10 +718,10 @@ public function getOrderOptions($product = null)
     {
         $options = parent::getOrderOptions($product);
         $options['attributes_info'] = $this->getSelectedAttributesInfo($product);
-        /** @var Mage_Sales_Model_Quote_Item_Option $simpleOption */
+        /** @var Mage_Sales_Model_Quote_Item_Option|Mage_Catalog_Model_Product_Configuration_Item_Option $simpleOption */
         if ($simpleOption = $this->getProduct($product)->getCustomOption('simple_product')) {
-            $options['simple_name'] = $simpleOption->getProduct($product)->getName();
-            $options['simple_sku']  = $simpleOption->getProduct($product)->getSku();
+            $options['simple_name'] = $simpleOption->getProduct()->getName();
+            $options['simple_sku']  = $simpleOption->getProduct()->getSku();
         }
 
         $options['product_calculations'] = self::CALCULATE_PARENT;
@@ -784,8 +784,8 @@ public function getWeight($product = null)
         if ($this->getProduct($product)->hasCustomOptions() &&
             ($simpleProductOption = $this->getProduct($product)->getCustomOption('simple_product'))
         ) {
-            /** @var Mage_Sales_Model_Quote_Item_Option $simpleProductOption */
-            $simpleProduct = $simpleProductOption->getProduct($product);
+            /** @var Mage_Sales_Model_Quote_Item_Option|Mage_Catalog_Model_Product_Configuration_Item_Option $simpleProductOption */
+            $simpleProduct = $simpleProductOption->getProduct();
             if ($simpleProduct) {
                 return $simpleProduct->getWeight();
             }
@@ -837,10 +837,10 @@ public function getSku($product = null)
         /** @var Mage_Sales_Model_Quote_Item_Option $simpleOption */
         $simpleOption = $this->getProduct($product)->getCustomOption('simple_product');
         if ($simpleOption) {
-            $optionProduct = $simpleOption->getProduct($product);
+            $optionProduct = $simpleOption->getProduct();
             $simpleSku = null;
             if ($optionProduct) {
-                $simpleSku =  $simpleOption->getProduct($product)->getSku();
+                $simpleSku =  $simpleOption->getProduct()->getSku();
             }
             $sku = parent::getOptionSku($product, $simpleSku);
         } else {

lib/Mage/Cache/Backend/File.php

@@ -104,7 +104,7 @@ public function __construct(array $options = array())
         }
 
         // Don't use parent constructor
-        while (list($name, $value) = each($options)) {
+        foreach ($options as $name => $value) {
             $this->setOption($name, $value);
         }
 

lib/Zend/Config/Yaml.php

@@ -289,7 +289,7 @@ protected static function _decodeYaml($currentIndent, &$lines)
     {
         $config   = array();
         $inIndent = false;
-        while (list($n, $line) = each($lines)) {
+        foreach($lines as $n => $line) {
             $lineno = $n + 1;
 
             $line = rtrim(preg_replace("/#.*$/", "", $line));

lib/Zend/Feed/Element.php

@@ -193,7 +193,7 @@ public function __get($var)
         if ($length == 1) {
             return new Zend_Feed_Element($nodes[0]);
         } elseif ($length > 1) {
-            return array_map(create_function('$e', 'return new Zend_Feed_Element($e);'), $nodes);
+            return array_map(function($e) { return new Zend_Feed_Element($e); }, $nodes);
         } else {
             // When creating anonymous nodes for __set chaining, don't
             // call appendChild() on them. Instead we pass the current

lib/Zend/Http/UserAgent/Features/Adapter/TeraWurfl.php

@@ -88,7 +88,7 @@ public static function getAllCapabilities(TeraWurfl $wurflObj)
             if (!is_array($group)) {
                 continue;
             }
-            while (list ($key, $value) = each($group)) {
+            foreach($group as $key => $value) {
                 if (is_bool($value)) {
                     // to have the same type than the official WURFL API
                     $features[$key] = ($value ? 'true' : 'false');

lib/Zend/Xml/Security.php

@@ -167,10 +167,10 @@ public static function scanFile($file, DOMDocument $dom = null)
     public static function isPhpFpm()
     {
         $isVulnerableVersion = (
-            version_compare(PHP_VERSION, '5.5.22', 'lt')
+            version_compare(PHP_VERSION, '5.5.22', '<')
             || (
-                version_compare(PHP_VERSION, '5.6', 'gte')
-                && version_compare(PHP_VERSION, '5.6.6', 'lt')
+                version_compare(PHP_VERSION, '5.6', '>=')
+                && version_compare(PHP_VERSION, '5.6.6', '<')
             )
         );
 

lib/Zend/XmlRpc/Value.php

@@ -486,13 +486,15 @@ protected static function _createSimpleXMLElement(&$xml)
      */
     protected static function _extractTypeAndValue(SimpleXMLElement $xml, &$type, &$value)
     {
-        list($type, $value) = each($xml);
+        $value = reset($xml);
+        $type = key($xml);
 
         if (!$type and $value === null) {
             $namespaces = array('ex' => 'http://ws.apache.org/xmlrpc/namespaces/extensions');
             foreach ($namespaces as $namespaceName => $namespaceUri) {
                 $namespaceXml = $xml->children($namespaceUri);
-                list($type, $value) = each($namespaceXml);
+                $value = reset($namespaceXml);
+                $type = key($namespaceXml);
                 if ($type !== null) {
                     $type = $namespaceName . ':' . $type;
                     break;