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<?php
namespace Bdf\Form\Transformer;
use Bdf\Form\ElementBuilderInterface;
use Bdf\Form\ElementInterface;
use Bdf\Form\Registry\RegistryInterface;
/**
* Wrap a closure into a Transformer
*
* <code>
* new ClosureTransformer(function ($value, ElementInterface $element, bool $toPhp) {
* return $toPhp ? parse($value) : normalize($value);
* });
* </code>
* @see RegistryInterface::transformer() With callbable should return a ClosureTransformer
* @see ElementBuilderInterface::transformer() For register a transformer on an element
*/
final class ClosureTransformer implements TransformerInterface
{
* @var callable
private $callback;
* @param callable $callback
public function __construct(callable $callback)
$this->callback = $callback;
}
* {@inheritdoc}
public function transformToHttp($value, ElementInterface $input)
return ($this->callback)($value, $input, false);
public function transformFromHttp($value, ElementInterface $input)
return ($this->callback)($value, $input, true);
b2pweb /
bdf-form
