Update questionhelper.rst

issamkhadiri1989 · javiereguiluz · commit bf9e245ea55e · 2022-06-28T17:28:26.000+02:00
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
diff --git a/components/console/helpers/questionhelper.rst b/components/console/helpers/questionhelper.rst
@@ -384,6 +384,9 @@ 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');
