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<?php
declare(strict_types=1);
namespace Doctrine\DBAL\Platforms\MySQL\CharsetMetadataProvider;
use Doctrine\DBAL\Connection;
use Doctrine\DBAL\Exception;
use Doctrine\DBAL\Platforms\MySQL\CharsetMetadataProvider;
/** @internal */
final class ConnectionCharsetMetadataProvider implements CharsetMetadataProvider
{
public function __construct(private readonly Connection $connection)
{
}
/** @throws Exception */
public function getDefaultCharsetCollation(string $charset): ?string
{
$collation = $this->connection->fetchOne(
<<<'SQL'
SELECT DEFAULT_COLLATE_NAME
FROM information_schema.CHARACTER_SETS
WHERE CHARACTER_SET_NAME = ?;
SQL
,
[$charset],
);
if ($collation !== false) {
return $collation;
}
return null;
}
}
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