phpmysql root用户无权限解决办法

进入mysql 控制台

 
mysql> use mysql;
Database changed
mysql>  select User from user;
+-----------+
| User      |
+-----------+
| mysql.sys |
| root      |
+-----------+
2 rows in set (0.00 sec)

mysql> update mysql.user set authentication_string=password('123456') where user='root';
Query OK, 1 row affected, 1 warning (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 1

mysql> flush privileges;
Query OK, 0 rows affected (0.02 sec)

mysql>

两行命令解决问题，再打开Phpmysql4.7或刷新 试试