Enable ArrayAccess

app/Classes/MetadataManager.php

@@ -2,9 +2,10 @@
 
 namespace App\Classes;
 
+use ArrayAccess;
 use Illuminate\Filesystem\FilesystemAdapter;
 
-class MetadataManager
+class MetadataManager implements ArrayAccess
 {
     /**
      * Original metadata content
@@ -65,4 +66,32 @@ public function save(): bool
 
         return true;
     }
+
+    public function offsetExists(mixed $offset): bool
+    {
+        return isset($this->content[$offset]);
+    }
+
+    public function &offsetGet(mixed $offset): mixed
+    {
+        if (!isset($this->content[$offset])) {
+            $this->content[$offset] = null;
+        }
+
+        return $this->content[$offset];
+    }
+
+    public function offsetSet(mixed $offset, mixed $value): void
+    {
+        if (is_null($offset)) {
+            $this->content[] = $value;
+        } else {
+            $this->content[$offset] = $value;
+        }
+    }
+
+    public function offsetUnset(mixed $offset): void
+    {
+        unset($this->content[$offset]);
+    }
 }