/**
* Method Not Allowed Handler
*
* This method defines or invokes the application-wide Method Not Allowed handler.
* There are two contexts in which this method may be invoked:
*
* 1. When declaring the handler:
*
* If the $callable parameter is not null and is callable, this
* method will register the callable to be invoked when at least one
* route matches the path of the current HTTP request, but no routes'
* method matches the method of the current HTTP request. It WILL NOT
* invoke the callable.
*
* 2. When invoking the handler:
*
* If the $callable parameter is null, Slim assumes you want
* to invoke an already-registered handler. If the handler has been
* registered and is callable, it is invoked and sends a 405 HTTP Response
* whose body is the output of the Method Not Allowed handler.
*
* @param mixed $callable Anything that returns true for is_callable()
* @return void
*/
public function methodNotAllowed($callable = null)
{
if (!is_null($callable)) {
$this->router->methodNotAllowed($callable);
} else {
ob_start();
$customMethodNotAllowedHandler = $this->router->methodNotAllowed();
if (is_callable($customMethodNotAllowedHandler)) {
call_user_func($customMethodNotAllowedHandler);
} else {
call_user_func(array($this, 'defaultMethodNotAllowed'));
}
$this->halt(405, ob_get_clean());
}
}
