Fixed an issue with empty arrays within arrays

Author: AmandoVledder

src/Exporters/ArrayExporter.php

@@ -106,8 +106,8 @@ private function walkArray(array $values, string $name, DOMDocument $document, D
                 $element = $document->createElement($fieldName);
 
                 if (empty($value)) {
-                    $element = $document->createElement($name);
-                    $parent = $root->appendChild($element);
+                    $element = $document->createElement($fieldName);
+                    $parent = $rootElement->appendChild($element);
                 } elseif (! Arr::isAssoc($value)) {
                     if ($rootElement->parentNode === null) {
                         $element = $document->createElement($name);

tests/Features/Export/ExportFromDataTest.php

@@ -124,4 +124,30 @@ public function test_exports_from_nested_string_array()
             ->toString();
         $this->assertMatchesXmlSnapshot($xml);
     }
+
+
+    /**
+     * Test exporting a nested string array.
+     */
+    public function test_exports_from_nested_arrays()
+    {
+        $data = [
+            'key1' => [
+                'foo' => 'bar',
+                'bar' => 'baz',
+                'baz' => []
+            ],
+            'key2' => [
+                'a' => 'b',
+                'c' => 'd'
+            ]
+        ];
+
+        $xml = XML::export($data)
+            ->setRootTag('export')
+            ->version('1.0')
+            ->encoding('UTF-8')
+            ->toString();
+        $this->assertMatchesXmlSnapshot($xml);
+    }
 }

tests/Features/Export/__snapshots__/ExportFromDataTest__test_exports_from_nested_arrays__1.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<export>
+  <key1>
+    <foo>bar</foo>
+    <bar>baz</bar>
+    <baz/>
+  </key1>
+  <key2>
+    <a>b</a>
+    <c>d</c>
+  </key2>
+</export>