尝试连接数据库时出错

Question

So I'm trying to connect the database and I get this error

Warning: mysqli_connect(): (HY000/1045): Access denied for user 'root'@'localhost' (using password: YES) in /usr/local/zend/share/UserServer/register.php on line 2

Here's line 2 $conn = mysqli_connect("localhost","root","xxxx","db");

Not sure where to go on from here.... Also my credentials are 100% correct.

Answer 1

You are trying to connect the database with the mysql user root@localhost,check if the user exists in your database:

select * from mysql.user where user='root' and host='localhost';

There will be a corresponding row if the user root@localhost exists.

Answer 2

Looks like the application is not identifying "localhost". Try these few options. 1) Try to connect using the ip 127.0.0.1 instead of localhost. 2) If you want to access via localhost itself, try to update the user table in mysql

update mysql.user set host='%' where user='root';
flush privileges;

3) Found some tips in this link for PHP specific configurations. I am not a PHP guy and so I do not know how to make this work. I hope you will understand. http://madproject.com/general/connect-to-mysql-using-localhost-instead-of-127-0-0-1-on-a-mac/