From 99f41ee353215dfc32d3126e10508b3fc0d08e57 Mon Sep 17 00:00:00 2001
From: kenjis <kenji.uui@gmail.com>
Date: Fri, 23 Aug 2024 08:26:35 +0900
Subject: [PATCH] fix: TypeError when there is numeric field name

TypeError: str_contains(): Argument #1 ($haystack) must be of type string, int given
---
 system/Validation/Validation.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/system/Validation/Validation.php b/system/Validation/Validation.php
index bfc661c2b3d4..c183a5bb739b 100644
--- a/system/Validation/Validation.php
+++ b/system/Validation/Validation.php
@@ -163,6 +163,9 @@ public function run(?array $data = null, ?string $group = null, $dbGroup = null)
         // Run through each rule. If we have any field set for
         // this rule, then we need to run them through!
         foreach ($this->rules as $field => $setup) {
+            //  An array key might be int.
+            $field = (string) $field;
+
             $rules = $setup['rules'];
 
             if (is_string($rules)) {