public function actionGetStudent()
{
$request = Yii::$app->request;
$year = $request->post('year');
$poscode = $request->post('zipcode');
$SearchStudent = Institution::getStudent($year, $poscode);
/*print_r($SearchStudent);
die();*/
Yii::$app->response->format = 'json';
// klu nk convert smue data jdi json
echo json_encode($SearchStudent);
}
