fix: property is passed as integer and cannot be accessed

Author: aistis-

src/JsonSchema/Constraints/ObjectConstraint.php

@@ -159,7 +159,7 @@ protected function &getProperty(&$element, $property, $fallback = null)
     {
         if (is_array($element) && (isset($element[$property]) || array_key_exists($property, $element)) /*$this->checkMode == self::CHECK_MODE_TYPE_CAST*/) {
             return $element[$property];
-        } elseif (is_object($element) && property_exists($element, $property)) {
+        } elseif (is_object($element) && property_exists($element, (string) $property)) {
             return $element->$property;
         }
 

tests/Constraints/PropertyNumberTest.php

@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * This file is part of the JsonSchema package.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace JsonSchema\Tests\Constraints;
+
+class PropertyNumberTest extends BaseTestCase
+{
+    protected $validateSchema = true;
+
+    public function getInvalidTests(): array
+    {
+        return [];
+    }
+
+    public function getValidTests(): array
+    {
+        return [
+            [
+                '{"some_property":{"some_sub_property":{"4":10,"2":10}}}',
+                '{
+                  "properties": {
+                    "some_property": {
+                      "type": "object",
+                      "additionalProperties": {
+                        "anyOf": [
+                          {
+                            "type": "object",
+                            "properties": {
+                              "sum": {
+                                "type": "number"
+                              },
+                              "count": {
+                                "type": "number"
+                              }
+                            },
+                            "required": [
+                              "value",
+                              "count"
+                            ]
+                          },
+                          {
+                            "type": "object",
+                            "additionalProperties": {
+                              "type": "number"
+                            }
+                          }
+                        ]
+                      }
+                    }
+                  },
+                  "type": "object",
+                  "required": [
+                    "some_property"
+                  ]
+                }'
+            ]
+        ];
+    }
+}