Some refactoring

src/MicrodataDOMElement.php

@@ -12,15 +12,7 @@ class MicrodataDOMElement extends \DOMElement
 
         $memory[] = $this;
 
-        if ($this->hasChildNodes()) {
+        $pending = array_merge($pending, $this->getChildElementNodes());
-            $childNodes = iterator_to_array($this->childNodes);
-
-            $childNodes = array_filter($childNodes, function ($node) {
-                return $node instanceof \DOMElement;
-            }); // Get only DOMElements
-
-            $pending = array_merge($pending, $childNodes);
-        }
 
         if ($this->hasAttribute('itemref')) {
             $tokens = preg_split('/\s+/', $this->getAttribute('itemref'));
@@ -33,32 +25,16 @@ class MicrodataDOMElement extends \DOMElement
         while ($pending) {
             $current = array_pop($pending);
 
-            $error = false;
-
             foreach ($memory as $memory_item) {
                 if ($current->isSameNode($memory_item)) {
-                    // There is MicrodataError
+                    continue 2; // Skip next part and continue while loop if memory contains $current
-                    $error = true;
-                    break;
                 }
             }
 
-            if ($error) {
-                continue;
-            }
-
             $memory[] = $current;
 
             if (! $current->hasAttribute('itemscope')) {
-                if ($current->hasChildNodes()) {
+                $pending = array_merge($pending, $current->getChildElementNodes());
-                    $childNodes = iterator_to_array($current->childNodes);
-
-                    $childNodes = array_filter($childNodes, function ($node) {
-                        return $node instanceof \DOMElement;
-                    });
-
-                    $pending = array_merge($pending, $childNodes);
-                }
             }
 
             if ($current->hasAttribute('itemprop') && /* hasPropertyNames */ $current->getPropertyNames()) {
@@ -163,4 +139,17 @@ class MicrodataDOMElement extends \DOMElement
     {
         return preg_match("/^\w+:/", trim($uri));
     }
+
+    protected function getChildElementNodes()
+    {
+        $childNodes = [];
+
+        foreach ($this->childNodes as $childNode) {
+            if ($childNode->nodeType == XML_ELEMENT_NODE) {
+                $childNodes[] = $childNode;
+            }
+        }
+
+        return $childNodes;
+    }
 }

src/MicrodataParser.php

@@ -18,14 +18,12 @@ class MicrodataParser
     {
         $result = new \stdClass;
 
-        $items = [];
+        $result->items = [];
 
         foreach ($this->topLevelItems as $topLevelItem) {
-            $items[] = $this->getObject($topLevelItem);
+            $result->items[] = $this->getObject($topLevelItem);
         }
 
-        $result->items = $items;
-
         return $result;
     }
 
@@ -53,6 +51,7 @@ class MicrodataParser
                 foreach ($memory as $memory_item) {
                     if ($element->isSameNode($memory_item)) {
                         $value = 'ERROR';
+                        break;
                     }
                 }