web/www/polls/votes/post.php

<?
use function Safe\session_unset;

if(HttpInput::RequestMethod() != HTTP_POST){
	http_response_code(405);
	exit();
}

session_start();

$requestType = HttpInput::RequestType();

$vote = new PollVote();

try{
	$vote->PollItemId = HttpInput::Int(POST, 'pollitemid');

	$vote->Create(HttpInput::Str(POST, 'email'));

	session_unset();

	if($requestType == WEB){
		$_SESSION['vote-created'] = $vote->UserId;
		http_response_code(303);
		header('Location: ' . $vote->Url);
	}
	else{
		// Access via REST api; 201 CREATED with location
		http_response_code(201);
		header('Location: ' . $vote->Url);
	}
}
catch(Exceptions\InvalidPollVoteException $ex){
	if($requestType == WEB){
		$_SESSION['vote'] = $vote;
		$_SESSION['exception'] = $ex;

		// Access via form; 303 redirect to the form, which will emit a 422 Unprocessable Entity
		http_response_code(303);
		header('Location: /polls/' . (HttpInput::Str(GET, 'pollurlname') ?? '') . '/votes/new');
	}
	else{
		// Access via REST api; 422 Unprocessable Entity
		http_response_code(422);
	}
}