From 66f5cc968a2013ae97b695d5ab393f2fb0261692 Mon Sep 17 00:00:00 2001
From: Issam KHADIRI <khadiri.issam@gmail.com>
Date: Sun, 12 Jun 2022 17:57:21 +0200
Subject: [PATCH] Update questionhelper.rst

hello,

when running the example as it is, a deprecation message is shown (i'm on PHP 8.1.6). the deprecation message says that ``trim(): Passing null to parameter #1 ($string) of type string is deprecated``.
what if we add a normalizer that returns an empty string when the entered value is `null` otherwise returns the user's intial input.  with this suggestion, the example works great
---
 components/console/helpers/questionhelper.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/console/helpers/questionhelper.rst b/components/console/helpers/questionhelper.rst
index d5ddf83a2e3..9159f66f652 100644
--- a/components/console/helpers/questionhelper.rst
+++ b/components/console/helpers/questionhelper.rst
@@ -420,6 +420,9 @@ You can also use a validator with a hidden question::
         $helper = $this->getHelper('question');
 
         $question = new Question('Please enter your password');
+        $question->setNormalizer(function ($value) {
+            return null === $value ? '' : $value;
+        });
         $question->setValidator(function ($value) {
             if (trim($value) == '') {
                 throw new \Exception('The password cannot be empty');