Add proper boolean conversion to xml representation (#228)

* Add proper boolean conversion to xml representation

* Update CHANGELOG.md

* Update ArrayToXmlTest.php

Author: radeno

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 All notable changes to `array-to-xml` will be documented in this file
 
+## 3.2.3 - 2024-XX-XX
+
+### What's Changed
+
+- Convert boolean values to proper xml representation by @radeno in https://github.com/spatie/array-to-xml/pull/228
+
 ## 3.2.2 - 2023-11-14
 
 ### What's Changed

src/ArrayToXml.php

@@ -19,7 +19,7 @@ class ArrayToXml
 
     protected string $numericTagNamePrefix = 'numeric_';
 
-    protected array $options = ['convertNullToXsiNil' => false];
+    protected array $options = ['convertNullToXsiNil' => false, 'convertBoolToString' => false];
 
     public function __construct(
         array $array,
@@ -30,7 +30,7 @@ public function __construct(
         array $domProperties = [],
         bool | null $xmlStandalone = null,
         bool $addXmlDeclaration = true,
-        array | null $options = ['convertNullToXsiNil' => false]
+        array | null $options = ['convertNullToXsiNil' => false, 'convertBoolToString' => false]
     ) {
         $this->document = new DOMDocument($xmlVersion, $xmlEncoding ?? '');
 
@@ -213,9 +213,21 @@ protected function addNode(DOMElement $element, string $key, mixed $value): void
         $this->addNodeTypeAttribute($child, $value);
 
         $element->appendChild($child);
+
+        $value = $this->convertNodeValue($child, $value);
+
         $this->convertElement($child, $value);
     }
 
+    protected function convertNodeValue(DOMElement $element, mixed $value): mixed
+    {
+        if ($this->options['convertBoolToString'] && is_bool($value)) {
+            $value = $value ? 'true' : 'false';
+        }
+
+        return $value;
+    }
+
     protected function addNodeTypeAttribute(DOMElement $element, mixed $value): void
     {
         if ($this->options['convertNullToXsiNil'] && is_null($value)) {

tests/ArrayToXmlTest.php

@@ -489,6 +489,24 @@
     assertMatchesXmlSnapshot(ArrayToXml::convert($arr, '', true, null, '1.0', [], null, true, ['convertNullToXsiNil' => true]));
 });
 
+it('can convert boolean values to xml representation', function () {
+    $arr = [
+        'testFalse' => false,
+        'testTrue' => true,
+    ];
+
+    assertMatchesXmlSnapshot(ArrayToXml::convert($arr, '', true, null, '1.0', [], null, true, ['convertBoolToString' => true]));
+});
+
+it('can not convert boolean values to xml representation', function () {
+    $arr = [
+        'testFalse' => false,
+        'testTrue' => true,
+    ];
+
+    assertMatchesXmlSnapshot(ArrayToXml::convert($arr));
+});
+
 it('can convert an array with empty string and null value to xml', function () {
     $arr = [
         'testString' => '',

tests/__snapshots__/ArrayToXmlTest__it_can_convert_boolean_values_to_xml_representation__1.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0"?>
+<root>
+  <testFalse>false</testFalse>
+  <testTrue>true</testTrue>
+</root>

tests/__snapshots__/ArrayToXmlTest__it_can_not_convert_boolean_values_to_xml_representation__1.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0"?>
+<root>
+  <testFalse/>
+  <testTrue>1</testTrue>
+</root>