From 41b9907f826998a2530ae7ba673857e8b84b38f5 Mon Sep 17 00:00:00 2001
From: Kev <symfonyaml@users.noreply.github.com>
Date: Wed, 7 Feb 2024 18:27:21 +0100
Subject: [PATCH] Add rrror handling when misuse of find() with array values

---
 src/UnitOfWork.php                            |  4 +++
 .../Functional/IdentifierFunctionalTest.php   | 26 +++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 tests/Tests/ORM/Functional/IdentifierFunctionalTest.php

diff --git a/src/UnitOfWork.php b/src/UnitOfWork.php
index 00698e56c60..56d8e399df2 100644
--- a/src/UnitOfWork.php
+++ b/src/UnitOfWork.php
@@ -1781,6 +1781,10 @@ public function addToIdentityMap($entity)
      */
     final public static function getIdHashByIdentifier(array $identifier): string
     {
+        if (array_filter($identifier, 'is_array')) {
+            throw new UnexpectedValueException('Unexpected identifier value: Expecting scalar, got array.');
+        }
+
         return implode(
             ' ',
             array_map(
diff --git a/tests/Tests/ORM/Functional/IdentifierFunctionalTest.php b/tests/Tests/ORM/Functional/IdentifierFunctionalTest.php
new file mode 100644
index 00000000000..ed8c9fb9ddb
--- /dev/null
+++ b/tests/Tests/ORM/Functional/IdentifierFunctionalTest.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional;
+
+use Doctrine\Tests\Models\CMS\CmsUser;
+use Doctrine\Tests\OrmFunctionalTestCase;
+use UnexpectedValueException;
+
+class IdentifierFunctionalTest extends OrmFunctionalTestCase
+{
+    protected function setUp(): void
+    {
+        $this->useModelSet('cms');
+
+        parent::setUp();
+    }
+
+    public function testIdentifierArrayValue(): void
+    {
+        $this->expectException(UnexpectedValueException::class);
+        $this->expectExceptionMessage('Unexpected identifier value: Expecting scalar, got array.');
+        $this->_em->find(CmsUser::class, ['id' => ['array']]);
+    }
+}