has('id')) { // return [ // 'id' => $student->id, // 'created_at' => $student->created_at ? $student->created_at->format('Y-m-d H:i:s') : null, // ]; // } return [ 'id' => $student->id, 'truename' => $student->truename, 'account' => $student->account, 'mobile' => $student->mobile, 'email' => $student->email, 'sex' => $student->sex, 'grade' => $student->grade, 'status' => $student->status, 'created_at' => $student->created_at ? $student->created_at->format('Y-m-d H:i:s') : null, 'updated_at' => $student->updated_at ? $student->updated_at->format('Y-m-d H:i:s') : null, ]; } }