Fixed small issues with the Dom object

Author: paquettg

src/PHPHtmlParser/Dom.php

@@ -252,7 +252,14 @@ public function find(string $selector, int $nth = null)
     {
         $this->isLoaded();
 
-        return $this->root->find($selector, $nth, $this->options->get('depthFirstSearch'));
+        $depthFirstSearch = $this->options->get('depthFirstSearch');
+        if (is_bool($depthFirstSearch)) {
+            $result = $this->root->find($selector, $nth, $depthFirstSearch);
+        } else {
+            $result = $this->root->find($selector, $nth);
+        }
+
+        return $result;
     }
 
     /**
@@ -793,15 +800,16 @@ protected function detectCharset(): bool
             return false;
         }
 
+        /** @var AbstractNode $meta */
         $meta = $this->root->find('meta[http-equiv=Content-Type]', 0);
         if (is_null($meta)) {
             // could not find meta tag
             $this->root->propagateEncoding($encode);
 
             return false;
         }
-        $content = $meta->content;
-        if (empty($content)) {
+        $content = $meta->getAttribute('content');
+        if (is_null($content)) {
             // could not find content
             $this->root->propagateEncoding($encode);
 

src/PHPHtmlParser/Dom/AbstractNode.php

@@ -342,9 +342,9 @@ public function getAttributes(): array
      * on the tag of this node.
      *
      * @param string $key
-     * @return mixed
+     * @return string|null
      */
-    public function getAttribute(string $key)
+    public function getAttribute(string $key): ?string
     {
         $attribute = $this->tag->getAttribute($key);
         if ( ! is_null($attribute)) {

src/PHPHtmlParser/Dom/Tag.php

@@ -294,7 +294,7 @@ public function getAttributes()
      * Returns an attribute by the key
      *
      * @param string $key
-     * @return mixed
+     * @return array|null
      */
     public function getAttribute(string $key):array
     {