PHP 无法连接到 MySQL 数据库访问被拒绝

Question

I get this error message

Access denied for user 'user'@'localhost' (using password: YES)

I tried to access with the root, the admin account and some user account I made for the web visitors with a few privileges. Those users (admin and web user) were created with cPanel.

I'm testing the connection with this simple code to avoid making a mess with functional code.

<?php
$con = mysql_connect("localhost","root","");
  
if (!$con)
{

die('Could not connect: ' . mysql_error());

}

 ?>

I stumbled with this explanation but it doesn't work either

Your cPanel username and password can be used to connect to your databases (as well as your cPanel). If you're connecting to your database using your cPanel username and password, you can reset your cPanel password to ensure you are using the correct username and password.

If you setup a MySQL username and password specifically for accessing a database, you'll want to ensure you are using the correct username in your php scripts. For example, MySQL usernames are always in this format:

cpanel-username_mysql-username

If your cPanel username is userna5 and you created a database username of dbuser1, then the actual database username would be:

userna5_dbuser1

Edit: i already assigned the users to a database and their privileges. I'm working on a remote server

Answer 1

You need to grant permissions to the user@host in mysql

grant all privileges on YOURDB.* to
'YOURUSER'@'localhost' identified by 'YOURPASSWORD';

Answer 2

I faced the exact same issue on one of my employees' Windows PC. The issue was caused duo the fact that his private repositories folders including those who were used by Docker were located in C:\\Users{user_name} folder. At some point in time, Windows prevented Docker's access to these folders.

Solution: relocation the folders outside the Users folder solved the issue.

Answer 3

Are you running the code on your local machine or on the remote server. If it's running on your local machine you'll have to replace 'localhost' with the ip address of the server eg. '123.123.123.123'

Answer 4

如果您在创建用户和数据库后使用在线服务器，请确保您授予用户访问数据库的权限

Answer 5

If you are accessing MySQL database from the remote server, you will have to use server IP address for MySQL host. Also you will have to allow your remote server IP address in "Remote MySQL" under your cPanel otherwise you will not be able to access your database remotely.