public function addAcademicYear() { $this->load->model('Academic_year_model'); $p = new Academic_year_model(); $p->academic_year = $this->input->post('academic_year'); $result = $p->addAcademicYear(); if (!$result) { echo mysqli_error($result); } else { redirect('academic_year/loadAllAcademicYears', 'refresh'); } }