Bug: $data->datasets[] = $dataset->data; PHP error (#34)

* #32 address the dataset error

* Update GitHub Actions to run php8.3

.github/workflows/php.yml

@@ -20,7 +20,7 @@ jobs:
     - name: Setup PHP with PECL extension
       uses: shivammathur/setup-php@v2
       with:
-        php-version: '8.2'
+        php-version: '8.3'
 
     - name: Validate composer.json and composer.lock
       run: composer validate --strict

src/Config/Config.php

@@ -17,7 +17,7 @@ public function __construct(array $attributes = [])
      * @param string $name
      * @return mixed
      */
-    public function __get($name)
+    public function &__get($name)
     {
         return $this->attributes[$name];
     }
@@ -29,7 +29,7 @@ public function __get($name)
      * @param mixed $value
      * @return $this
      */
-    public function __set($name, $value)
+    public function &__set($name, $value)
     {
         $this->attributes[$name] = $value;
 

tests/ChartTest.php

@@ -302,4 +302,31 @@ public function test_can_create_mixed_chart_types()
 
         $this->assertEquals($expected, $this->chart->get());
     }
+
+    /**
+     * Test if the chart dataset can be set as an array without using a method.
+     */
+    public function test_can_set_dataset_as_an_array()
+    {
+        $this->chart->type = 'bar';
+
+        $data = new Data;
+        $dataset = new Dataset();
+        $dataset->data = [5, 10, 20];
+        $data->datasets[] = $dataset->data;
+
+        $this->chart->data($data);
+
+        $expected = [
+            'type' => 'bar',
+            'data' => [
+                'datasets' => [
+                    [5, 10, 20],
+                ],
+            ],
+            'options' => []
+        ];
+
+        $this->assertEquals($expected, $this->chart->get());
+    }
 }