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<?php
/**
* @author : Jagepard <[email protected]>
* @license https://mit-license.org/ MIT
*/
namespace Behavioral\ChainOfResponsibility;
abstract class AbstractHandler implements ChainInterface
{
protected AbstractHandler $nextHandler;
* @param string $request
public function execute(string $request): void
if ($request === get_called_class()) {
printf("%s %s".PHP_EOL, get_called_class(), "has handle an error");
return;
}
if (!isset($this->nextHandler)) {
throw new \InvalidArgumentException($request . " does not exist in the chain");
$this->nextHandler->execute($request);
* @param AbstractHandler $handler
* @return AbstractHandler
public function setNext(AbstractHandler $handler): AbstractHandler
$this->nextHandler = $handler;
return $handler;
Jagepard /
PhpDesignPatterns-ChainOfResponsibility
