Symfony：角色管理上的“数组到字符串转换”错误

Question

我已经开始探索 Symfony 4.4.7 的安全性。用户创建工作，我可以看到它的参数保存在数据库中：

MariaDB [(symfony)]> desc user;
+----------+--------------+------+-----+---------+----------------+
| Field    | Type         | Null | Key | Default | Extra          |
+----------+--------------+------+-----+---------+----------------+
| id       | int(11)      | NO   | PRI | NULL    | auto_increment |
| username | varchar(180) | NO   | UNI | NULL    |                |
| roles    | longtext     | NO   |     | NULL    |                |
| password | varchar(255) | NO   |     | NULL    |                |
+----------+--------------+------+-----+---------+----------------+
4 rows in set (0.106 sec)

MariaDB [symfony]> select * from user;
+----+---------------+---------------+---------------------------------------------------------------------------------------------------+
| id | username      | roles         | password                                                                                          |
+----+---------------+---------------+---------------------------------------------------------------------------------------------------+
| 13 | administrator | ["ROLE_USER"] | $argon2id$v=19$m=65536,t=4,p=1$rDxNxYso7afyYiTaTnuL9A$kW+fMWykrEUHVzPMFvZSvPwENohmKakk9iymvJRhu98 |
+----+---------------+---------------+---------------------------------------------------------------------------------------------------+
1 row in set (0.001 sec)

但是当我尝试登录时出现错误：“注意：数组到字符串的转换” 错误指向这行代码：return array_unique($roles);

我有日志：

[2020-05-28 10:28:44] request.CRITICAL: Uncaught PHP Exception ErrorException: "Notice: Array to string conversion" at /var/www/symfony/src/Entity/User.php line 68 {"exception":"[object] (ErrorException(code: 0): Notice: Array to string conversion at /var/www/symfony/src/Entity/User.php:68)"} []

这里有什么问题？

感谢您的帮助

Answer 1

通常roles 字段存储在数据库中，如序列化数组。在您的情况下，它应该是a:1:{i:0;s:9:"ROLE_USER";}。