“Connect failed: Access denied for user 'root'@'localhost' (using password: YES)” from php function [duplicate]

Answer 1

Here maybe?

I believe that the code should be:

$connect = new mysqli("host", "root", "", "dbname");

because root does not have a password. the (using password: YES) is saying "you're using a password with this user"

Answer 2

Try initializing your variables and use them in your connection object:

$username ="root";
$password = "password";
$host = "localhost";
$table = "shop";
$conn = new mysqli("$host", "$username", "$password", "$table");

Answer 3

Most likely it is not identifying your user properly. root@localhost. Select the Mysql version your MAMP is using.

/Applications/MAMP/Library/bin/mysqldump -uroot -p db_name > test_db_dump.sql

I actually wrote an alias on my computer so I don't have to remember how to get to the bin directory.

alias mysqldumpMAMP='/Applications/MAMP/Library/bin/mysqldump'

Which allows me to run this:

mysqldumpMAMP -uroot -p db_name > test_db_dump.sql

You can save an alias in your bash profile ~/.bash_profile or ~/.bash_rc

Answer 4

Is there a user account entry in the DB for root@localhost? In MySQL you can set different user account permissions by host. There could be several different accounts with the same name combined with the host they are connecting from. The most common are root@127.0.0.1 and root@localhost. These can have different passwords and permissions. Make sure root@localhost exist and has the settings you expect.

I am willing to bet, based on your explanation, that this is the problem. Connecting from another PC uses a different account than root@localhost and the command line I think connects using root@127.0.0.1.

Answer 5

Easy.

open xampp control panel -> Config -> my.ini edit with notepad. now add this below [mysqld]

skip-grant-tables

Save. Start apache and mysql.

I hope help you

Answer 6

I solved in this way: I logged in with root username

mysql -u root -p -h localhost

I created a new user with

CREATE USER 'francesco'@'localhost' IDENTIFIED BY 'some_pass';

then I created the database

CREATE DATABASE shop;

I granted privileges for new user for this database

GRANT ALL PRIVILEGES ON shop.* TO 'francesco'@'localhost';

Then I logged out root and logged in new user

quit;
mysql -u francesco -p -h localhost

I rebuilt my database using a script

source shop.sql;

And that's it.. Now from php works without problems with the call

 $conn = new mysqli("localhost", "francesco", "some_pass", "shop");

Thanks to all for your time :)