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Question.php
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Question.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Console\Question;
use Symfony\Component\Console\Exception\InvalidArgumentException;
use Symfony\Component\Console\Exception\LogicException;
/**
* Represents a Question.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class Question
{
private ?int $attempts = null;
private bool $hidden = false;
private bool $hiddenFallback = true;
private ?\Closure $autocompleterCallback = null;
private ?\Closure $validator = null;
private ?\Closure $normalizer = null;
private bool $trimmable = true;
private bool $multiline = false;
/**
* @param string $question The question to ask to the user
* @param string|bool|int|float|null $default The default answer to return if the user enters nothing
*/
public function __construct(
private string $question,
private string|bool|int|float|null $default = null,
) {
}
/**
* Returns the question.
*/
public function getQuestion(): string
{
return $this->question;
}
/**
* Returns the default answer.
*/
public function getDefault(): string|bool|int|float|null
{
return $this->default;
}
/**
* Returns whether the user response accepts newline characters.
*/
public function isMultiline(): bool
{
return $this->multiline;
}
/**
* Sets whether the user response should accept newline characters.
*
* @return $this
*/
public function setMultiline(bool $multiline): static
{
$this->multiline = $multiline;
return $this;
}
/**
* Returns whether the user response must be hidden.
*/
public function isHidden(): bool
{
return $this->hidden;
}
/**
* Sets whether the user response must be hidden or not.
*
* @return $this
*
* @throws LogicException In case the autocompleter is also used
*/
public function setHidden(bool $hidden): static
{
if ($this->autocompleterCallback) {
throw new LogicException('A hidden question cannot use the autocompleter.');
}
$this->hidden = $hidden;
return $this;
}
/**
* In case the response cannot be hidden, whether to fallback on non-hidden question or not.
*/
public function isHiddenFallback(): bool
{
return $this->hiddenFallback;
}
/**
* Sets whether to fallback on non-hidden question if the response cannot be hidden.
*
* @return $this
*/
public function setHiddenFallback(bool $fallback): static
{
$this->hiddenFallback = $fallback;
return $this;
}
/**
* Gets values for the autocompleter.
*/
public function getAutocompleterValues(): ?iterable
{
$callback = $this->getAutocompleterCallback();
return $callback ? $callback('') : null;
}
/**
* Sets values for the autocompleter.
*
* @return $this
*
* @throws LogicException
*/
public function setAutocompleterValues(?iterable $values): static
{
if (\is_array($values)) {
$values = $this->isAssoc($values) ? array_merge(array_keys($values), array_values($values)) : array_values($values);
$callback = static fn () => $values;
} elseif ($values instanceof \Traversable) {
$callback = static function () use ($values) {
static $valueCache;
return $valueCache ??= iterator_to_array($values, false);
};
} else {
$callback = null;
}
return $this->setAutocompleterCallback($callback);
}
/**
* Gets the callback function used for the autocompleter.
*/
public function getAutocompleterCallback(): ?callable
{
return $this->autocompleterCallback;
}
/**
* Sets the callback function used for the autocompleter.
*
* The callback is passed the user input as argument and should return an iterable of corresponding suggestions.
*
* @return $this
*/
public function setAutocompleterCallback(?callable $callback): static
{
if ($this->hidden && null !== $callback) {
throw new LogicException('A hidden question cannot use the autocompleter.');
}
$this->autocompleterCallback = null === $callback ? null : $callback(...);
return $this;
}
/**
* Sets a validator for the question.
*
* @return $this
*/
public function setValidator(?callable $validator): static
{
$this->validator = null === $validator ? null : $validator(...);
return $this;
}
/**
* Gets the validator for the question.
*/
public function getValidator(): ?callable
{
return $this->validator;
}
/**
* Sets the maximum number of attempts.
*
* Null means an unlimited number of attempts.
*
* @return $this
*
* @throws InvalidArgumentException in case the number of attempts is invalid
*/
public function setMaxAttempts(?int $attempts): static
{
if (null !== $attempts && $attempts < 1) {
throw new InvalidArgumentException('Maximum number of attempts must be a positive value.');
}
$this->attempts = $attempts;
return $this;
}
/**
* Gets the maximum number of attempts.
*
* Null means an unlimited number of attempts.
*/
public function getMaxAttempts(): ?int
{
return $this->attempts;
}
/**
* Sets a normalizer for the response.
*
* The normalizer can be a callable (a string), a closure or a class implementing __invoke.
*
* @return $this
*/
public function setNormalizer(callable $normalizer): static
{
$this->normalizer = $normalizer(...);
return $this;
}
/**
* Gets the normalizer for the response.
*
* The normalizer can ba a callable (a string), a closure or a class implementing __invoke.
*/
public function getNormalizer(): ?callable
{
return $this->normalizer;
}
protected function isAssoc(array $array): bool
{
return (bool) \count(array_filter(array_keys($array), 'is_string'));
}
public function isTrimmable(): bool
{
return $this->trimmable;
}
/**
* @return $this
*/
public function setTrimmable(bool $trimmable): static
{
$this->trimmable = $trimmable;
return $this;
}
}

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Mime Type
text/x-php
Expires
Aug 19 2026, 18:21 (6 w, 2 h ago)
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local-disk
Storage Format
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Storage Handle
3c/4c/fbf330e4aa0a5ffd72d558151b58
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Question.php (6 KB)

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