Next Class Reference

Iterate a queue of middlewares and execute them. More...

Public Member Functions
	__construct (SplQueue $queue, callable $done)
	Constructor.
	__invoke (ServerRequestInterface $request, ResponseInterface $response, $err=null)
	Call the next Route in the queue.

Detailed Description

Iterate a queue of middlewares and execute them.

Constructor & Destructor Documentation

__construct	(	SplQueue	$queue,
		callable	$done
	)

Constructor.

Clones the queue provided to allow re-use.

Parameters

SplQueue	$queue
callable	$done

Member Function Documentation

__invoke	(	ServerRequestInterface	$request,
		ResponseInterface	$response,
			$err = null
	)

Call the next Route in the queue.

Next requires that a request and response are provided; these will be passed to any middleware invoked, including the $done callable, if invoked.

If the $err value is not null, the invocation is considered to be an error invocation, and Next will search for the next error middleware to dispatch, passing it $err along with the request and response.

Once dispatch is complete, if the result is a response instance, that value will be returned; otherwise, the currently registered response instance will be returned.

Parameters

ServerRequestInterface	$request
ResponseInterface	$response
null | mixed	$err

Returns

ResponseInterface