问题
Over the last day or so I'm not able to connect to a database through PHP. Here's what my code connecting to the database looks like
$con = mysqli_connect("localhost","root","password","database");
And here's the strange error.
PHP Warning: mysqli_connect(): (HY000/1045): Access denied for user 'user'@'localhost' (using password: YES) in - on line 2
I'd usually get that error if the credentials are incorrect, but I used a GUI and tested the connection with the exact credentials, where therefore means that, that is not the issue. I just started randomly getting this error and have restarted my computer, reinstalled MySQL, and reconfigure the server I've also tried 127.0.0.1 instead of localhost I'm on localhost so I have full control on pretty much anything and I didn't mess with anything causing this issue. Any ideas?
回答1:
For some reason the function is trying to connect using the "user" user instead of "root".
You can debug further by adding the error link:
$con= mysqli_connect("myhost","myuser","mypassw","mybd") or die("Error " . mysqli_error($con));
回答2:
Maybe the problem is in mysql server configuration.
You can try to change password and after flush privileges.
Than restart mysql!
Hope this helps! Bye.
回答3:
I had the same problem as the title of this question, so incase anyone else googles upon this question and wants to start MySql in 'skip-grant-tables' mode on Windows, here is what I did.
Stop the MySQL service through Administrator tools, Services.
Modify the my.ini configuration file (assuming default paths)
C:\Program Files\MySQL\MySQL Server 5.5\my.ini
In the SERVER SECTION, under [mysqld], add the following line:
skip-grant-tables
so that you have
# SERVER SECTION
# ----------------------------------------------------------------------
#
#The following options will be read by the MySQL Server. Make sure that
# you have installed the server correctly (see above) so it reads this
# file.
#
[mysqld]
skip-grant-tables
Start the service again and you should be able to log into your database without a password.
来源：https://stackoverflow.com/questions/23279934/bizarre-error-when-trying-to-connect-to-database