Fix #18505: Fixed ArrayHelper::get() for ArrayAccess objects with explicitly defined properties

Co-authored-by: Bizley <pawel@positive.codes>

framework/CHANGELOG.md

@@ -17,6 +17,7 @@ Yii Framework 2 Change Log
 - Enh #18493: Faster request parsing for REST UrlRule with prefix handling (bizley)
 - Enh #18487: Allow creating URLs for non-GET-verb rules (bizley)
 - Bug #8750: Fix MySQL support when running in `ANSI`/`ANSI_QUOTES` modes (brandonkelly)
+- Bug #18505: Fixed `yii\helpers\ArrayHelper::getValue()` for ArrayAccess objects with explicitly defined properties (samdark)
 
 
 2.0.40 December 23, 2020

framework/helpers/BaseArrayHelper.php

@@ -196,6 +196,10 @@ class BaseArrayHelper
             $key = $lastKey;
         }
 
+        if (is_object($array) && property_exists($array, $key)) {
+            return $array->$key;
+        }
+
         if (static::keyExists($key, $array)) {
             return $array[$key];
         }