/** * 指定查询where条件,并没有真正的查询数据库操作 * @param array $where * @param string|null $field * @param string $order * @param string $with * @return EloquentBuilder|QueryBuilder|Model */ protected function doSelect(...

$writer = new Xlsx($spreadsheet); $response = response(); ob_start(); $writer->save('php://output'); $c = ob_get_contents(); ob_end_clean(); $response->withHeaders([ 'Content-Type' => 'application/...