mysqli_real_connect(): (HY000/1045): Access denied for user 'root2'@'localhost' (using password: YES) phpmyadmin code example

Example 1: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

# Stop Your Server First
sudo service mysql stop

# Make MySQL service directory.
sudo mkdir /var/run/mysqld

# Give MySQL permission to work with the created directory
sudo chown mysql: /var/run/mysqld

# Start MySQL, without permission and network checking
sudo mysqld_safe --skip-grant-tables --skip-networking &

# Log in to your server without any password.
mysql -u root mysql


# Update the password for the root user:
UPDATE mysql.user SET authentication_string=PASSWORD('YourNewPasswordBuddy'), plugin='mysql_native_password' WHERE User='root' AND Host='localhost';

#if you omit (AND Host='localhost') section, it updates the root pass regardless of its host

FLUSH PRIVILEGES;
EXIT;

#kill mysqld_safe process
sudo service mysql restart

#Now you can use your new password to login to your Server
mysql -u root -p

#take note for remote access you should create a remote user and then grant all privileges to that remote user

Example 2: mysqli_real_connect(): (28000/1045): Access denied for user 'u0738423'@'www8.aname.net' (using password: YES)

// Connect to mysqli database

$connection = mysqli_connect('localhost', 'root', '', 'test'); 

// OR with a P@$$w0rd

$connection = mysqli_connect('localhost', 'root', 'P@$$w0rd', 'test');