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<?php
namespace alkemann\h2l\util;
use alkemann\h2l\exceptions;
use alkemann\h2l\Request;
use alkemann\h2l\Response;
/**
* Class Chain
*
* Non-generic implementation, only meant for the Request to Response generation chain
* @package alkemann\h2l\util
*/
class Chain
{
* @var array<callable>
private array $chain;
* Constructor
* @param array<callable> $chained_callable
public function __construct(array $chained_callable = [])
$this->chain = $chained_callable;
}
* Take the first callable in the chain, remove it from que and call it, returning it's result
* @param Request $request
* @return null|Response
public function next(Request $request): ?Response
if (empty($this->chain)) {
throw new exceptions\EmptyChainError();
$next = array_shift($this->chain);
return $next($request, $this);
alkemann /
h2l
