feat: make XmlDocument stringable

(cherry picked from commit 4073afa)
oat-sa · Nov 15, 2022 · 40a7e4f · 40a7e4f
1 parent 70bb5fe
commit 40a7e4f
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/qtism/data/storage/xml/XmlDocument.php b/qtism/data/storage/xml/XmlDocument.php
@@ -80,14 +80,19 @@ public function __construct($version = '2.1', QtiComponent $documentComponent =
 
     public function __serialize(): array
     {
-        return ['domDocument' => $this->saveToString(false)];
+        return ['domDocument' => (string)$this];
     }
 
     public function __unserialize(array $data): void
     {
         $this->loadFromString($data['domDocument']);
     }
 
+    public function __toString(): string
+    {
+        return $this->saveToString(false);
+    }
+
     /**
      * Set the DOMDocument object in use.
      *