/**
* Function to handle the "/questions" REST-POST call.
*
* It stores the transmitted question on the file system
* and redirects to the previous page.
*/
function save_question()
{
// create question from POST data
$submittedQuestion = new Question($_POST["questionId"], $_POST["question"], array($_POST["answer1"], $_POST["answer2"], $_POST["answer3"], $_POST["answer4"]), $_POST["correct-answer"] - 1);
$submittedQuestion->saveToFile();
// create coin only after question has been saved to ensure the id has been initialized
$coin = new Coin($submittedQuestion->getId());
$coin->saveToFile();
// redirect back to previous page
header('Location: ' . $_SERVER['HTTP_REFERER']);
}
