thinkphp如何在保存session值

Question

public function submit() {         $id = (int) input('post.id');         $data['username'] = Session::get('username');         $data['content'] = trim(input('post.content'));         if ($data['content'] == '') {             exit(json_encode(array('code' => 1, 'msg' => '内容不能为空')));         } else {             $this->db->table('message')->insert($data);         }         $mes = $this->db->table('message')->where(array('username' => $data['username']))->item();         $this->assign('mes', $mes);         exit(json_encode(array('code' => 0, 'msg' => '留言成功')));         return $this->fetch();     }在thinkphp中应该如何保存session值？

Answer 1

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