Get Request Params
GET:
You can get $_GET params by using the getQueryParams() method like so:
$params = $request->getQueryParams();
foreach($params as $key => $param){
// GET parameters...
}
POST / PUT:
You can get $_POST or $_PUT params by using the getParsedBody() method like so:
$params = $request->getParsedBody();
foreach($params as $key => $param){
// POST or PUT parameters...
}