public function convert()
{
//Retrieve data from form
$from_to = $_POST['from_to'] !== NULL ? $_POST['from_to'] : NULL;
//default test data
$d = array("name" => "Dalhatu Njidda", "task" => "Swipe Contest", "role" => array("Position" => "Executive Trainee", "Level" => "Junior"));
$converter = new Convert();
$data['result'] = null;
if ($from_to === "jsontoarray") {
$data['result'] = $converter->to_array($converter->to_json($d));
} elseif ($from_to === "arraytojson" && is_array($d)) {
$data['result'] = $converter->to_json($d);
}
$this->load->view('result', $data);
}