diff --git a/lib/internal/Magento/Framework/Api/AbstractExtensibleObject.php b/lib/internal/Magento/Framework/Api/AbstractExtensibleObject.php
index 3ea43cbccd24f..99dd972dc26ea 100644
--- a/lib/internal/Magento/Framework/Api/AbstractExtensibleObject.php
+++ b/lib/internal/Magento/Framework/Api/AbstractExtensibleObject.php
@@ -74,7 +74,7 @@ public function getCustomAttribute($attributeCode)
      */
     public function getCustomAttributes()
     {
-        return isset($this->_data[self::CUSTOM_ATTRIBUTES]) ? $this->_data[self::CUSTOM_ATTRIBUTES] : [];
+        return $this->_data[self::CUSTOM_ATTRIBUTES] ?? [];
     }
 
     /**
@@ -129,7 +129,7 @@ public function setCustomAttribute($attributeCode, $attributeValue)
      */
     protected function getCustomAttributesCodes()
     {
-        return isset($this->customAttributesCodes) ? $this->customAttributesCodes : [];
+        return $this->customAttributesCodes ?? [];
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Api/AbstractSimpleObject.php b/lib/internal/Magento/Framework/Api/AbstractSimpleObject.php
index b907246139d42..9cc0ddab3bfcb 100644
--- a/lib/internal/Magento/Framework/Api/AbstractSimpleObject.php
+++ b/lib/internal/Magento/Framework/Api/AbstractSimpleObject.php
@@ -34,7 +34,7 @@ public function __construct(array $data = [])
      */
     protected function _get($key)
     {
-        return isset($this->_data[$key]) ? $this->_data[$key] : null;
+        return $this->_data[$key] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Api/ImageProcessor.php b/lib/internal/Magento/Framework/Api/ImageProcessor.php
index e2c5f8c4083b9..4642a742576df 100644
--- a/lib/internal/Magento/Framework/Api/ImageProcessor.php
+++ b/lib/internal/Magento/Framework/Api/ImageProcessor.php
@@ -172,7 +172,7 @@ public function processImageContent($entityType, $imageContent)
      */
     protected function getMimeTypeExtension($mimeType)
     {
-        return isset($this->mimeTypeExtensionMap[$mimeType]) ? $this->mimeTypeExtensionMap[$mimeType] : '';
+        return $this->mimeTypeExtensionMap[$mimeType] ?? '';
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Api/Search/Document.php b/lib/internal/Magento/Framework/Api/Search/Document.php
index d60458a6e5585..7454fa7974ece 100644
--- a/lib/internal/Magento/Framework/Api/Search/Document.php
+++ b/lib/internal/Magento/Framework/Api/Search/Document.php
@@ -33,9 +33,7 @@ public function setId($id)
      */
     public function getCustomAttribute($attributeCode)
     {
-        return isset($this->_data[self::CUSTOM_ATTRIBUTES][$attributeCode])
-            ? $this->_data[self::CUSTOM_ATTRIBUTES][$attributeCode]
-            : null;
+        return $this->_data[self::CUSTOM_ATTRIBUTES][$attributeCode] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/FilterProcessor.php b/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/FilterProcessor.php
index b663a3a2f733c..e127dfd4b1624 100644
--- a/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/FilterProcessor.php
+++ b/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/FilterProcessor.php
@@ -114,6 +114,6 @@ private function getCustomFilterForField($field)
      */
     private function getFieldMapping($field)
     {
-        return isset($this->fieldMapping[$field]) ? $this->fieldMapping[$field] : $field;
+        return $this->fieldMapping[$field] ?? $field;
     }
 }
diff --git a/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/JoinProcessor.php b/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/JoinProcessor.php
index b8e52334bee1f..207325042c737 100644
--- a/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/JoinProcessor.php
+++ b/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/JoinProcessor.php
@@ -121,6 +121,6 @@ private function getCustomJoin($field)
      */
     private function getFieldMapping($field)
     {
-        return isset($this->fieldMapping[$field]) ? $this->fieldMapping[$field] : $field;
+        return $this->fieldMapping[$field] ?? $field;
     }
 }
diff --git a/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/SortingProcessor.php b/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/SortingProcessor.php
index 7598c4eb4abdc..9c18b8c1a9ae5 100644
--- a/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/SortingProcessor.php
+++ b/lib/internal/Magento/Framework/Api/SearchCriteria/CollectionProcessor/SortingProcessor.php
@@ -59,7 +59,7 @@ public function process(SearchCriteriaInterface $searchCriteria, AbstractDb $col
      */
     private function getFieldMapping($field)
     {
-        return isset($this->fieldMapping[$field]) ? $this->fieldMapping[$field] : $field;
+        return $this->fieldMapping[$field] ?? $field;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/App/ActionFlag.php b/lib/internal/Magento/Framework/App/ActionFlag.php
index 657c2ede9262d..55201504c968f 100644
--- a/lib/internal/Magento/Framework/App/ActionFlag.php
+++ b/lib/internal/Magento/Framework/App/ActionFlag.php
@@ -65,9 +65,7 @@ public function get($action, $flag = '')
             $action = $this->_request->getActionName();
         }
         if ('' === $flag) {
-            return isset(
-                $this->_flags[$this->_getControllerKey()]
-            ) ? $this->_flags[$this->_getControllerKey()] : [];
+            return $this->_flags[$this->_getControllerKey()] ?? [];
         } elseif (isset($this->_flags[$this->_getControllerKey()][$action][$flag])) {
             return $this->_flags[$this->_getControllerKey()][$action][$flag];
         } else {
diff --git a/lib/internal/Magento/Framework/App/AreaList.php b/lib/internal/Magento/Framework/App/AreaList.php
index 7c123f7ff9d60..fb28d09d5fe09 100644
--- a/lib/internal/Magento/Framework/App/AreaList.php
+++ b/lib/internal/Magento/Framework/App/AreaList.php
@@ -88,7 +88,7 @@ public function getCodeByFrontName($frontName)
      */
     public function getFrontName($areaCode)
     {
-        return isset($this->_areas[$areaCode]['frontName']) ? $this->_areas[$areaCode]['frontName'] : null;
+        return $this->_areas[$areaCode]['frontName'] ?? null;
     }
 
     /**
@@ -111,7 +111,7 @@ public function getCodes()
      */
     public function getDefaultRouter($areaCode)
     {
-        return isset($this->_areas[$areaCode]['router']) ? $this->_areas[$areaCode]['router'] : null;
+        return $this->_areas[$areaCode]['router'] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/App/Config/Initial.php b/lib/internal/Magento/Framework/App/Config/Initial.php
index 1933682346ad3..b65c9a2f53489 100644
--- a/lib/internal/Magento/Framework/App/Config/Initial.php
+++ b/lib/internal/Magento/Framework/App/Config/Initial.php
@@ -72,9 +72,9 @@ public function getData($scope)
         list($scopeType, $scopeCode) = array_pad(explode('|', $scope), 2, null);
 
         if (ScopeConfigInterface::SCOPE_TYPE_DEFAULT == $scopeType) {
-            return isset($this->_data[$scopeType]) ? $this->_data[$scopeType] : [];
+            return $this->_data[$scopeType] ?? [];
         } elseif ($scopeCode) {
-            return isset($this->_data[$scopeType][$scopeCode]) ? $this->_data[$scopeType][$scopeCode] : [];
+            return $this->_data[$scopeType][$scopeCode] ?? [];
         }
         return [];
     }
diff --git a/lib/internal/Magento/Framework/App/DefaultPath/DefaultPath.php b/lib/internal/Magento/Framework/App/DefaultPath/DefaultPath.php
index 61d0aa138f9a4..8a4188aed9605 100644
--- a/lib/internal/Magento/Framework/App/DefaultPath/DefaultPath.php
+++ b/lib/internal/Magento/Framework/App/DefaultPath/DefaultPath.php
@@ -32,6 +32,6 @@ public function __construct(array $parts)
      */
     public function getPart($code)
     {
-        return isset($this->_parts[$code]) ? $this->_parts[$code] : null;
+        return $this->_parts[$code] ?? null;
     }
 }
diff --git a/lib/internal/Magento/Framework/App/DeploymentConfig.php b/lib/internal/Magento/Framework/App/DeploymentConfig.php
index 92bb3fdbbc54f..615c295675adc 100644
--- a/lib/internal/Magento/Framework/App/DeploymentConfig.php
+++ b/lib/internal/Magento/Framework/App/DeploymentConfig.php
@@ -70,7 +70,7 @@ public function get($key = null, $defaultValue = null)
         if ($key === null) {
             return $this->flatData;
         }
-        return isset($this->flatData[$key]) ? $this->flatData[$key] : $defaultValue;
+        return $this->flatData[$key] ?? $defaultValue;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/App/Http/Context.php b/lib/internal/Magento/Framework/App/Http/Context.php
index a5eba2753b510..79a15110234cd 100644
--- a/lib/internal/Magento/Framework/App/Http/Context.php
+++ b/lib/internal/Magento/Framework/App/Http/Context.php
@@ -84,9 +84,7 @@ public function unsValue($name)
      */
     public function getValue($name)
     {
-        return isset($this->data[$name])
-            ? $this->data[$name]
-            : (isset($this->default[$name]) ? $this->default[$name] : null);
+        return $this->data[$name] ?? ($this->default[$name] ?? null);
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Component/ComponentRegistrar.php b/lib/internal/Magento/Framework/Component/ComponentRegistrar.php
index 9c746177d6f7d..88b2995179d4d 100644
--- a/lib/internal/Magento/Framework/Component/ComponentRegistrar.php
+++ b/lib/internal/Magento/Framework/Component/ComponentRegistrar.php
@@ -68,7 +68,7 @@ public function getPaths($type)
     public function getPath($type, $componentName)
     {
         self::validateType($type);
-        return isset(self::$paths[$type][$componentName]) ? self::$paths[$type][$componentName] : null;
+        return self::$paths[$type][$componentName] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Config/View.php b/lib/internal/Magento/Framework/Config/View.php
index ef9c39e221e86..05863caeec2b6 100644
--- a/lib/internal/Magento/Framework/Config/View.php
+++ b/lib/internal/Magento/Framework/Config/View.php
@@ -71,7 +71,7 @@ public function __construct(
     public function getVars($module)
     {
         $this->initData();
-        return isset($this->data['vars'][$module]) ? $this->data['vars'][$module] : [];
+        return $this->data['vars'][$module] ?? [];
     }
 
     /**
@@ -110,7 +110,7 @@ public function getVarValue($module, $var)
     public function getMediaEntities($module, $mediaType)
     {
         $this->initData();
-        return isset($this->data['media'][$module][$mediaType]) ? $this->data['media'][$module][$mediaType] : [];
+        return $this->data['media'][$module][$mediaType] ?? [];
     }
 
     /**
@@ -124,9 +124,7 @@ public function getMediaEntities($module, $mediaType)
     public function getMediaAttributes($module, $mediaType, $mediaId)
     {
         $this->initData();
-        return isset($this->data['media'][$module][$mediaType][$mediaId])
-            ? $this->data['media'][$module][$mediaType][$mediaId]
-            : [];
+        return $this->data['media'][$module][$mediaType][$mediaId] ?? [];
     }
 
     /**
@@ -163,7 +161,7 @@ protected function getIdAttributes()
     public function getExcludedFiles()
     {
         $items = $this->getItems();
-        return isset($items['file']) ? $items['file'] : [];
+        return $items['file'] ?? [];
     }
 
     /**
@@ -174,7 +172,7 @@ public function getExcludedFiles()
     public function getExcludedDir()
     {
         $items = $this->getItems();
-        return isset($items['directory']) ? $items['directory'] : [];
+        return $items['directory'] ?? [];
     }
 
     /**
@@ -185,7 +183,7 @@ public function getExcludedDir()
     protected function getItems()
     {
         $this->initData();
-        return isset($this->data['exclude']) ? $this->data['exclude'] : [];
+        return $this->data['exclude'] ?? [];
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/DB/Adapter/Pdo/Mysql.php b/lib/internal/Magento/Framework/DB/Adapter/Pdo/Mysql.php
index 2274fde82b818..1449d6d2a6456 100644
--- a/lib/internal/Magento/Framework/DB/Adapter/Pdo/Mysql.php
+++ b/lib/internal/Magento/Framework/DB/Adapter/Pdo/Mysql.php
@@ -483,7 +483,7 @@ public function rawFetchRow($sql, $field = null)
         if (empty($field)) {
             return $row;
         } else {
-            return isset($row[$field]) ? $row[$field] : false;
+            return $row[$field] ?? false;
         }
     }
 
diff --git a/lib/internal/Magento/Framework/Data/AbstractCriteria.php b/lib/internal/Magento/Framework/Data/AbstractCriteria.php
index c90ed2b03bf3d..d4811b79980a9 100644
--- a/lib/internal/Magento/Framework/Data/AbstractCriteria.php
+++ b/lib/internal/Magento/Framework/Data/AbstractCriteria.php
@@ -274,7 +274,7 @@ public function getLimit()
      */
     public function getPart($name, $default = null)
     {
-        return isset($this->data[$name]) ? $this->data[$name] : $default;
+        return $this->data[$name] ?? $default;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Data/AbstractDataObject.php b/lib/internal/Magento/Framework/Data/AbstractDataObject.php
index 5916100ffbbfa..da04fecc447cc 100644
--- a/lib/internal/Magento/Framework/Data/AbstractDataObject.php
+++ b/lib/internal/Magento/Framework/Data/AbstractDataObject.php
@@ -50,6 +50,6 @@ public function toArray()
      */
     protected function get($key)
     {
-        return isset($this->data[$key]) ? $this->data[$key] : null;
+        return $this->data[$key] ?? null;
     }
 }
diff --git a/lib/internal/Magento/Framework/Data/Collection.php b/lib/internal/Magento/Framework/Data/Collection.php
index f8b82d3122234..71ec8c1aa8379 100644
--- a/lib/internal/Magento/Framework/Data/Collection.php
+++ b/lib/internal/Magento/Framework/Data/Collection.php
@@ -851,7 +851,7 @@ public function count()
      */
     public function getFlag($flag)
     {
-        return isset($this->_flags[$flag]) ? $this->_flags[$flag] : null;
+        return $this->_flags[$flag] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Data/Structure.php b/lib/internal/Magento/Framework/Data/Structure.php
index 9d540e8a49f08..a977d3448ec26 100644
--- a/lib/internal/Magento/Framework/Data/Structure.php
+++ b/lib/internal/Magento/Framework/Data/Structure.php
@@ -166,7 +166,7 @@ public function createElement($elementId, array $data)
      */
     public function getElement($elementId)
     {
-        return isset($this->_elements[$elementId]) ? $this->_elements[$elementId] : false;
+        return $this->_elements[$elementId] ?? false;
     }
 
     /**
@@ -456,9 +456,7 @@ public function getChildId($parentId, $alias)
      */
     public function getChildren($parentId)
     {
-        return isset(
-            $this->_elements[$parentId][self::CHILDREN]
-        ) ? $this->_elements[$parentId][self::CHILDREN] : [];
+        return $this->_elements[$parentId][self::CHILDREN] ?? [];
     }
 
     /**
@@ -469,7 +467,7 @@ public function getChildren($parentId)
      */
     public function getParentId($childId)
     {
-        return isset($this->_elements[$childId][self::PARENT]) ? $this->_elements[$childId][self::PARENT] : false;
+        return $this->_elements[$childId][self::PARENT] ?? false;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Event.php b/lib/internal/Magento/Framework/Event.php
index 4c116d0a33629..c7b15a8eb0722 100644
--- a/lib/internal/Magento/Framework/Event.php
+++ b/lib/internal/Magento/Framework/Event.php
@@ -88,7 +88,7 @@ public function dispatch()
      */
     public function getName()
     {
-        return isset($this->_data['name']) ? $this->_data['name'] : null;
+        return $this->_data['name'] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Filesystem/Io/File.php b/lib/internal/Magento/Framework/Filesystem/Io/File.php
index 60a94d5b430e9..2e724260ff543 100644
--- a/lib/internal/Magento/Framework/Filesystem/Io/File.php
+++ b/lib/internal/Magento/Framework/Filesystem/Io/File.php
@@ -228,7 +228,7 @@ public function streamStat($part = null, $default = null)
         }
         $stat = @fstat($this->_streamHandler);
         if ($part !== null) {
-            return isset($stat[$part]) ? $stat[$part] : $default;
+            return $stat[$part] ?? $default;
         }
         return $stat;
     }
diff --git a/lib/internal/Magento/Framework/Filter/AbstractFactory.php b/lib/internal/Magento/Framework/Filter/AbstractFactory.php
index 2a0ae0ba15e42..c30b07aa09061 100644
--- a/lib/internal/Magento/Framework/Filter/AbstractFactory.php
+++ b/lib/internal/Magento/Framework/Filter/AbstractFactory.php
@@ -68,7 +68,7 @@ public function canCreateFilter($alias)
      */
     public function isShared($class)
     {
-        return isset($this->shared[$class]) ? $this->shared[$class] : $this->shareByDefault;
+        return $this->shared[$class] ?? $this->shareByDefault;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Filter/Input.php b/lib/internal/Magento/Framework/Filter/Input.php
index 39c7a54786edb..6da748fcbeb9f 100644
--- a/lib/internal/Magento/Framework/Filter/Input.php
+++ b/lib/internal/Magento/Framework/Filter/Input.php
@@ -183,7 +183,7 @@ public function getFilters($name = null)
         if (null === $name) {
             return $this->_filters;
         } else {
-            return isset($this->_filters[$name]) ? $this->_filters[$name] : null;
+            return $this->_filters[$name] ?? null;
         }
     }
 
diff --git a/lib/internal/Magento/Framework/Interception/PluginList/PluginList.php b/lib/internal/Magento/Framework/Interception/PluginList/PluginList.php
index 489755a2846fc..718b08190d8be 100644
--- a/lib/internal/Magento/Framework/Interception/PluginList/PluginList.php
+++ b/lib/internal/Magento/Framework/Interception/PluginList/PluginList.php
@@ -268,7 +268,7 @@ public function getNext($type, $method, $code = '__self')
             $this->_inheritPlugins($type);
         }
         $key = $type . '_' . lcfirst($method) . '_' . $code;
-        return isset($this->_processed[$key]) ? $this->_processed[$key] : null;
+        return $this->_processed[$key] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Message/Collection.php b/lib/internal/Magento/Framework/Message/Collection.php
index fb8351c5a04ba..b1e3088a703f7 100644
--- a/lib/internal/Magento/Framework/Message/Collection.php
+++ b/lib/internal/Magento/Framework/Message/Collection.php
@@ -142,7 +142,7 @@ public function getItems()
      */
     public function getItemsByType($type)
     {
-        return isset($this->messages[$type]) ? $this->messages[$type] : [];
+        return $this->messages[$type] ?? [];
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Model/AbstractExtensibleModel.php b/lib/internal/Magento/Framework/Model/AbstractExtensibleModel.php
index db919c80e251c..5963f5f942374 100644
--- a/lib/internal/Magento/Framework/Model/AbstractExtensibleModel.php
+++ b/lib/internal/Magento/Framework/Model/AbstractExtensibleModel.php
@@ -151,9 +151,7 @@ public function getCustomAttributes()
     public function getCustomAttribute($attributeCode)
     {
         $this->initializeCustomAttributes();
-        return isset($this->_data[self::CUSTOM_ATTRIBUTES][$attributeCode])
-            ? $this->_data[self::CUSTOM_ATTRIBUTES][$attributeCode]
-            : null;
+        return $this->_data[self::CUSTOM_ATTRIBUTES][$attributeCode] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Module/FullModuleList.php b/lib/internal/Magento/Framework/Module/FullModuleList.php
index 5ad5b05a413ef..c6e403dee0898 100644
--- a/lib/internal/Magento/Framework/Module/FullModuleList.php
+++ b/lib/internal/Magento/Framework/Module/FullModuleList.php
@@ -55,7 +55,7 @@ public function getAll()
     public function getOne($name)
     {
         $data = $this->getAll();
-        return isset($data[$name]) ? $data[$name] : null;
+        return $data[$name] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Module/ModuleList.php b/lib/internal/Magento/Framework/Module/ModuleList.php
index 406aa9efd31a0..6ee061cffb3d0 100644
--- a/lib/internal/Magento/Framework/Module/ModuleList.php
+++ b/lib/internal/Magento/Framework/Module/ModuleList.php
@@ -90,7 +90,7 @@ public function getAll()
     public function getOne($name)
     {
         $enabled = $this->getAll();
-        return isset($enabled[$name]) ? $enabled[$name] : null;
+        return $enabled[$name] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Module/ModuleResource.php b/lib/internal/Magento/Framework/Module/ModuleResource.php
index ed740d459060e..9f7ac2a1b393c 100644
--- a/lib/internal/Magento/Framework/Module/ModuleResource.php
+++ b/lib/internal/Magento/Framework/Module/ModuleResource.php
@@ -84,7 +84,7 @@ public function getDbVersion($moduleName)
             return false;
         }
         $this->_loadVersion('db');
-        return isset(self::$schemaVersions[$moduleName]) ? self::$schemaVersions[$moduleName] : false;
+        return self::$schemaVersions[$moduleName] ?? false;
     }
 
     /**
@@ -116,7 +116,7 @@ public function getDataVersion($moduleName)
             return false;
         }
         $this->_loadVersion('data');
-        return isset(self::$dataVersions[$moduleName]) ? self::$dataVersions[$moduleName] : false;
+        return self::$dataVersions[$moduleName] ?? false;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Module/PackageInfo.php b/lib/internal/Magento/Framework/Module/PackageInfo.php
index 7edb0c04ebf98..0dce507ba26f4 100644
--- a/lib/internal/Magento/Framework/Module/PackageInfo.php
+++ b/lib/internal/Magento/Framework/Module/PackageInfo.php
@@ -283,6 +283,6 @@ public function getConflict($moduleName)
     public function getVersion($moduleName)
     {
         $this->load();
-        return isset($this->modulePackageVersionMap[$moduleName]) ? $this->modulePackageVersionMap[$moduleName] : '';
+        return $this->modulePackageVersionMap[$moduleName] ?? '';
     }
 }
diff --git a/lib/internal/Magento/Framework/Notification/MessageList.php b/lib/internal/Magento/Framework/Notification/MessageList.php
index 8fb91890b2ff0..ac753b48c8944 100644
--- a/lib/internal/Magento/Framework/Notification/MessageList.php
+++ b/lib/internal/Magento/Framework/Notification/MessageList.php
@@ -72,7 +72,7 @@ protected function _loadMessages()
     public function getMessageByIdentity($identity)
     {
         $this->_loadMessages();
-        return isset($this->_messages[$identity]) ? $this->_messages[$identity] : null;
+        return $this->_messages[$identity] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Factory/Fixture/Polymorphous.php b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Factory/Fixture/Polymorphous.php
index ebb7d76dcb63c..0c1a2128560f8 100644
--- a/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Factory/Fixture/Polymorphous.php
+++ b/lib/internal/Magento/Framework/ObjectManager/Test/Unit/Factory/Fixture/Polymorphous.php
@@ -26,6 +26,6 @@ public function __construct()
      */
     public function getArg($key)
     {
-        return isset($this->args[$key]) ? $this->args[$key] : null;
+        return $this->args[$key] ?? null;
     }
 }
diff --git a/lib/internal/Magento/Framework/Pricing/Amount/Base.php b/lib/internal/Magento/Framework/Pricing/Amount/Base.php
index 2664ccc54944c..d055819a4a126 100644
--- a/lib/internal/Magento/Framework/Pricing/Amount/Base.php
+++ b/lib/internal/Magento/Framework/Pricing/Amount/Base.php
@@ -105,9 +105,7 @@ public function getBaseAmount()
      */
     public function getAdjustmentAmount($adjustmentCode)
     {
-        return isset($this->adjustmentAmounts[$adjustmentCode])
-            ? $this->adjustmentAmounts[$adjustmentCode]
-            : false;
+        return $this->adjustmentAmounts[$adjustmentCode] ?? false;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Pricing/Price/Pool.php b/lib/internal/Magento/Framework/Pricing/Price/Pool.php
index b460113fc32c8..dfdd0c52681e1 100644
--- a/lib/internal/Magento/Framework/Pricing/Price/Pool.php
+++ b/lib/internal/Magento/Framework/Pricing/Price/Pool.php
@@ -141,6 +141,6 @@ public function offsetUnset($offset)
      */
     public function offsetGet($offset)
     {
-        return isset($this->prices[$offset]) ? $this->prices[$offset] : null;
+        return $this->prices[$offset] ?? null;
     }
 }
diff --git a/lib/internal/Magento/Framework/Search/Response/Aggregation.php b/lib/internal/Magento/Framework/Search/Response/Aggregation.php
index 9cb7a364ff21c..ea72597c53034 100644
--- a/lib/internal/Magento/Framework/Search/Response/Aggregation.php
+++ b/lib/internal/Magento/Framework/Search/Response/Aggregation.php
@@ -47,7 +47,7 @@ public function getIterator()
      */
     public function getBucket($bucketName)
     {
-        return isset($this->buckets[$bucketName]) ? $this->buckets[$bucketName] : null;
+        return $this->buckets[$bucketName] ?? null;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Session/SessionManager.php b/lib/internal/Magento/Framework/Session/SessionManager.php
index ecf169cb0bc88..b855b05a38354 100644
--- a/lib/internal/Magento/Framework/Session/SessionManager.php
+++ b/lib/internal/Magento/Framework/Session/SessionManager.php
@@ -476,7 +476,7 @@ protected function _addHost()
      */
     protected function _getHosts()
     {
-        return isset($_SESSION[self::HOST_KEY]) ? $_SESSION[self::HOST_KEY] : [];
+        return $_SESSION[self::HOST_KEY] ?? [];
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Url.php b/lib/internal/Magento/Framework/Url.php
index 2982edaa4766f..5a02beb798ed0 100644
--- a/lib/internal/Magento/Framework/Url.php
+++ b/lib/internal/Magento/Framework/Url.php
@@ -1074,7 +1074,7 @@ function ($match) {
                     if ($match[1] == '?') {
                         return isset($match[3]) ? '?' : '';
                     } elseif ($match[1] == '&' || $match[1] == '&') {
-                        return isset($match[3]) ? $match[3] : '';
+                        return $match[3] ?? '';
                     }
                 }
             },
diff --git a/lib/internal/Magento/Framework/Validator/Exception.php b/lib/internal/Magento/Framework/Validator/Exception.php
index c70ecfabb52af..370f66c424b01 100644
--- a/lib/internal/Magento/Framework/Validator/Exception.php
+++ b/lib/internal/Magento/Framework/Validator/Exception.php
@@ -84,6 +84,6 @@ public function getMessages($type = '')
             }
             return $allMessages;
         }
-        return isset($this->messages[$type]) ? $this->messages[$type] : [];
+        return $this->messages[$type] ?? [];
     }
 }
diff --git a/lib/internal/Magento/Framework/View/Asset/PropertyGroup.php b/lib/internal/Magento/Framework/View/Asset/PropertyGroup.php
index ad86dfca47a25..4fe8f48d6b723 100644
--- a/lib/internal/Magento/Framework/View/Asset/PropertyGroup.php
+++ b/lib/internal/Magento/Framework/View/Asset/PropertyGroup.php
@@ -45,6 +45,6 @@ public function getProperties()
      */
     public function getProperty($name)
     {
-        return isset($this->properties[$name]) ? $this->properties[$name] : null;
+        return $this->properties[$name] ?? null;
     }
 }
diff --git a/lib/internal/Magento/Framework/View/BlockPool.php b/lib/internal/Magento/Framework/View/BlockPool.php
index c50af9d5bbc5f..dff280057fdaf 100644
--- a/lib/internal/Magento/Framework/View/BlockPool.php
+++ b/lib/internal/Magento/Framework/View/BlockPool.php
@@ -72,6 +72,6 @@ public function get($name = null)
             return $this->blocks;
         }
 
-        return isset($this->blocks[$name]) ? $this->blocks[$name] : null;
+        return $this->blocks[$name] ?? null;
     }
 }
diff --git a/lib/internal/Magento/Framework/View/DataSourcePool.php b/lib/internal/Magento/Framework/View/DataSourcePool.php
index 24bdb6639981b..94f4f1dceae97 100644
--- a/lib/internal/Magento/Framework/View/DataSourcePool.php
+++ b/lib/internal/Magento/Framework/View/DataSourcePool.php
@@ -80,7 +80,7 @@ public function get($name = null)
             return $this->dataSources;
         }
 
-        return isset($this->dataSources[$name]) ? $this->dataSources[$name] : null;
+        return $this->dataSources[$name] ?? null;
     }
 
     /**
@@ -107,6 +107,6 @@ public function assign($dataName, $namespace, $alias)
      */
     public function getNamespaceData($namespace)
     {
-        return isset($this->assignments[$namespace]) ? $this->assignments[$namespace] : [];
+        return $this->assignments[$namespace] ?? [];
     }
 }
diff --git a/lib/internal/Magento/Framework/View/Design/Theme/Validator.php b/lib/internal/Magento/Framework/View/Design/Theme/Validator.php
index 06c78e7125040..04e775d730b56 100644
--- a/lib/internal/Magento/Framework/View/Design/Theme/Validator.php
+++ b/lib/internal/Magento/Framework/View/Design/Theme/Validator.php
@@ -118,7 +118,7 @@ public function addDataValidators($dataKey, $validators)
     public function getErrorMessages($dataKey = null)
     {
         if ($dataKey) {
-            return isset($this->_errorMessages[$dataKey]) ? $this->_errorMessages[$dataKey] : [];
+            return $this->_errorMessages[$dataKey] ?? [];
         }
         return $this->_errorMessages;
     }
diff --git a/lib/internal/Magento/Framework/View/Element/UiComponent/Context.php b/lib/internal/Magento/Framework/View/Element/UiComponent/Context.php
index 4430d18db1e70..7312f7546df9b 100644
--- a/lib/internal/Magento/Framework/View/Element/UiComponent/Context.php
+++ b/lib/internal/Magento/Framework/View/Element/UiComponent/Context.php
@@ -208,7 +208,7 @@ public function getFiltersParams()
     public function getFilterParam($key, $defaultValue = null)
     {
         $filter = $this->getFiltersParams();
-        return isset($filter[$key]) ? $filter[$key] : $defaultValue;
+        return $filter[$key] ?? $defaultValue;
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/View/Element/UiComponent/DataProvider/DataProvider.php b/lib/internal/Magento/Framework/View/Element/UiComponent/DataProvider/DataProvider.php
index b2288a47f8f83..baa4e94eed978 100644
--- a/lib/internal/Magento/Framework/View/Element/UiComponent/DataProvider/DataProvider.php
+++ b/lib/internal/Magento/Framework/View/Element/UiComponent/DataProvider/DataProvider.php
@@ -181,7 +181,7 @@ public function getMeta()
      */
     public function getFieldSetMetaInfo($fieldSetName)
     {
-        return isset($this->meta[$fieldSetName]) ? $this->meta[$fieldSetName] : [];
+        return $this->meta[$fieldSetName] ?? [];
     }
 
     /**
@@ -190,7 +190,7 @@ public function getFieldSetMetaInfo($fieldSetName)
      */
     public function getFieldsMetaInfo($fieldSetName)
     {
-        return isset($this->meta[$fieldSetName]['children']) ? $this->meta[$fieldSetName]['children'] : [];
+        return $this->meta[$fieldSetName]['children'] ?? [];
     }
 
     /**
@@ -200,9 +200,7 @@ public function getFieldsMetaInfo($fieldSetName)
      */
     public function getFieldMetaInfo($fieldSetName, $fieldName)
     {
-        return isset($this->meta[$fieldSetName]['children'][$fieldName])
-            ? $this->meta[$fieldSetName]['children'][$fieldName]
-            : [];
+        return $this->meta[$fieldSetName]['children'][$fieldName] ?? [];
     }
 
     /**
@@ -291,7 +289,7 @@ public function getData()
      */
     public function getConfigData()
     {
-        return isset($this->data['config']) ? $this->data['config'] : [];
+        return $this->data['config'] ?? [];
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/View/Layout/Generic.php b/lib/internal/Magento/Framework/View/Layout/Generic.php
index b83545ff3c439..b527d1a817a96 100644
--- a/lib/internal/Magento/Framework/View/Layout/Generic.php
+++ b/lib/internal/Magento/Framework/View/Layout/Generic.php
@@ -200,6 +200,6 @@ protected function createChildFormComponent(UiComponentInterface $childComponent
      */
     protected function getConfig($name)
     {
-        return isset($this->data['config'][$name]) ? $this->data['config'][$name] : null;
+        return $this->data['config'][$name] ?? null;
     }
 }
diff --git a/lib/internal/Magento/Framework/View/Layout/ScheduledStructure.php b/lib/internal/Magento/Framework/View/Layout/ScheduledStructure.php
index 25a04845a0728..3193e10282fd4 100644
--- a/lib/internal/Magento/Framework/View/Layout/ScheduledStructure.php
+++ b/lib/internal/Magento/Framework/View/Layout/ScheduledStructure.php
@@ -146,7 +146,7 @@ public function unsetElementToSort($elementName)
      */
     public function getElementToSort($elementName, array $default = [])
     {
-        return isset($this->elementsToSort[$elementName]) ? $this->elementsToSort[$elementName] : $default;
+        return $this->elementsToSort[$elementName] ?? $default;
     }
 
     /**
@@ -257,7 +257,7 @@ public function unsetElement($elementName)
      */
     public function getElementToMove($elementName, $default = null)
     {
-        return isset($this->scheduledMoves[$elementName]) ? $this->scheduledMoves[$elementName] : $default;
+        return $this->scheduledMoves[$elementName] ?? $default;
     }
 
     /**
@@ -370,7 +370,7 @@ public function unsetStructureElement($elementName)
      */
     public function getStructureElementData($elementName, $default = null)
     {
-        return isset($this->scheduledData[$elementName]) ? $this->scheduledData[$elementName] : $default;
+        return $this->scheduledData[$elementName] ?? $default;
     }
 
     /**
@@ -524,6 +524,6 @@ public function populateWithArray(array $data)
      */
     private function getArrayValueByKey($key, array $array)
     {
-        return isset($array[$key]) ? $array[$key] : [];
+        return $array[$key] ?? [];
     }
 }
diff --git a/lib/internal/Magento/Framework/View/Page/Config.php b/lib/internal/Magento/Framework/View/Page/Config.php
index 058cad00320cd..226abc538112b 100644
--- a/lib/internal/Magento/Framework/View/Page/Config.php
+++ b/lib/internal/Magento/Framework/View/Page/Config.php
@@ -542,7 +542,7 @@ public function setElementAttribute($elementType, $attribute, $value)
     public function getElementAttribute($elementType, $attribute)
     {
         $this->build();
-        return isset($this->elements[$elementType][$attribute]) ? $this->elements[$elementType][$attribute] : null;
+        return $this->elements[$elementType][$attribute] ?? null;
     }
 
     /**
@@ -552,7 +552,7 @@ public function getElementAttribute($elementType, $attribute)
     public function getElementAttributes($elementType)
     {
         $this->build();
-        return isset($this->elements[$elementType]) ? $this->elements[$elementType] : [];
+        return $this->elements[$elementType] ?? [];
     }
 
     /**
diff --git a/lib/internal/Magento/Framework/Xml/Generator.php b/lib/internal/Magento/Framework/Xml/Generator.php
index 975073e443d0e..f165793c2e2a4 100644
--- a/lib/internal/Magento/Framework/Xml/Generator.php
+++ b/lib/internal/Magento/Framework/Xml/Generator.php
@@ -146,8 +146,6 @@ public function setIndexedArrayItemName($name)
      */
     protected function _getIndexedArrayItemName()
     {
-        return isset($this->_defaultIndexedArrayItemName)
-            ? $this->_defaultIndexedArrayItemName
-            : self::DEFAULT_ENTITY_ITEM_NAME;
+        return $this->_defaultIndexedArrayItemName ?? self::DEFAULT_ENTITY_ITEM_NAME;
     }
 }