public function getStudentinfoallAction()
 {
     if ($this->getRequest()->isPost()) {
         $_db = new Registrar_Model_DbTable_DbGetStudentInfo();
         $_rs_student = $_db->getAllStudent();
         print_r(Zend_Json::encode($_rs_student));
         exit;
     }
 }
 public function getStudentinfoAction()
 {
     if ($this->getRequest()->isPost()) {
         $_data = $this->getRequest()->getPost();
         $_db = new Registrar_Model_DbTable_DbGetStudentInfo();
         $_rs_student = $_db->getStudentById($_data['student_card']);
         print_r(Zend_Json::encode($_rs_student));
         exit;
     }
 }