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<?php
declare(strict_types=1);
namespace Yiisoft\ErrorHandler;
use Yiisoft\ErrorHandler\Middleware\ErrorCatcher;
/**
* `HeadersProvider` provides headers for error response.
* It is used by {@see ErrorCatcher} to add headers to response in case of error.
*/
final class HeadersProvider
{
* @param array<string, string[]> $headers Default headers list.
public function __construct(
private array $headers = [],
) {
}
* Adds a header to the list of headers.
*
* @param string $name The header name.
* @param string|string[] $values The header value.
public function add(string $name, string|array $values): void
$this->headers[$name] = (array)$values;
* Returns all headers.
* @return array<string, string[]> The headers list.
public function getAll(): array
return $this->headers;
yiisoft /
error-handler
