Symfony\Component\Console\Helper\DialogHelper::askAndValidate PHP Méthode

DialogHelper Class Documentation Usage Examples Of Symfony\Component\Console\Helper\DialogHelper::askAndValidate Afficher le fichier Open project: pmjones/php-framework-benchmarks

askAndValidate() public méthode

The validator receives the data to validate. It must return the validated data when the data is valid and throw an exception otherwise.
public askAndValidate ( Symfony\Component\Console\Output\OutputInterface $output, string | array $question, callback $validator, integer $attempts = false, string $default = null ) : mixed
$output Symfony\Component\Console\Output\OutputInterface
$question string | array
$validator callback A PHP callback
$attempts integer Max number of times to ask before giving up (false by default, which means infinite)
$default string The default answer if none is given by the user
Résultat mixed 
    public function askAndValidate(OutputInterface $output, $question, $validator, $attempts = false, $default = null)
    {
        $error = null;
        while (false === $attempts || $attempts--) {
            if (null !== $error) {
                $output->writeln($this->getHelperSet()->get('formatter')->formatBlock($error->getMessage(), 'error'));
            }

            $value = $this->ask($output, $question, $default);

            try {
                return call_user_func($validator, $value);
            } catch (\Exception $error) {
            }
        }

        throw $error;
    }

Usage Example

Exemple #1
0
 public function ask($question, $regex, $errorText = null, $default = null)
 {
     if ($default) {
         $question = "{$question} [{$default}]";
     }
     return $this->dialog->askAndValidate($this->output, "<question>{$question}</question> ", $this->validateWith($regex, $errorText), false, $default);
 }
All Usage Examples Of Symfony\Component\Console\Helper\DialogHelper::askAndValidate
DialogHelper
ask
askAndValidate
askConfirmation
getName
setInputStream