ArrayLoader.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\Translation\Loader;
use Symfony\Component\Translation\MessageCatalogue;
/**
* ArrayLoader loads translations from a PHP array.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class ArrayLoader implements LoaderInterface
{
/**
* {@inheritdoc}
*/
public function load($resource, string $locale, string $domain = 'messages')
{
$resource = $this->flatten($resource);
$catalogue = new MessageCatalogue($locale);
$catalogue->add($resource, $domain);
return $catalogue;
}
/**
* Flattens an nested array of translations.
*
* The scheme used is:
* 'key' => ['key2' => ['key3' => 'value']]
* Becomes:
* 'key.key2.key3' => 'value'
*/
private function flatten(array $messages): array
{
$result = [];
foreach ($messages as $key => $value) {
if (\is_array($value)) {
foreach ($this->flatten($value) as $k => $v) {
if (null !== $v) {
$result[$key.'.'.$k] = $v;
}
}
} elseif (null !== $value) {
$result[$key] = $value;
}
}
return $result;
}
}