public function generate_return_data_post() { $file_path = $this->input->post('filePath'); // e:\sample_path.json $return_id = $this->input->post('returnId'); $returns_repo = new Returns_Repository($this->base_model->get_db_instance()); $return_data = $returns_repo->to_return_json($return_id); $enc = new Encryption(); $file_size = file_put_contents($file_path, $enc->encrypt($return_data)); if ($file_size >= 1) { $returns_repo->update_return_status($return_id, Return_Status::Success); } else { $returns_repo->update_return_status($return_id, Return_Status::Failed); } echo $file_size; // if >= 1, write is successful }