无法通过 MAMP 连接到 MySQL

Question

So here's my array containing my credentials.

'mysql' => array(
    'host' => '127.0.0.1',
    'username' => 'root',
    'password' => '*',
    'db' => 's'
)

And the actual connection

 try{
    $this->_pdo = new PDO('mysql:host=' . Config::get('mysql/host') . ';dbname=' . Config::get('mysql/db'),Config::get('mysql/username'),Config::get('mysql/username'));
}
catch(PDOException $e){
    die($e->getMessage());
}

And this is the error I get

SQLSTATE[28000] [1045] Access denied for user 'root'@'localhost' (using password: YES)

But I am aware that this means access is denied, but the credentials are 100% correct. I also tested via command line and through workbench.

Answer 1

Are you sure a password is set? What happens if you attempt to connect via the command line line this:

/Applications/MAMP/Library/bin/mysql -uroot

Also, the password for root in MAMP is root . This is no deep/dark secret. Is the * in your example valid?

And in your connector, have you tried using localhost instead of 127.0.0.1 ? I have seen some MySQL setups work with one but not the other when it should be both.

EDIT: If you somehow mucked up the root password, don't panic! You can still reset it this way. Warning, some folks feel this method of password reset is “risky” but that is generally true for a production server or any server in the wild. From MAMP on your desktop, this should be 100% safe.

First, stop MAMP entirely.

Next, start it up again from the command line with the skip-grant-tables option like so:

/Applications/MAMP/Library/bin/mysqld --skip-grant-tables

Once that is done, you can login with 100% no password just like this:

/Applications/MAMP/Library/bin/mysql -uroot

Then you can reset the root password with this one-liner:

UPDATE user SET Password=PASSWORD('root') WHERE user='root'; FLUSH PRIVILEGES; exit;

Okay, now find the process running the MySQL daemon with skip-grant-tables from the command line like this:

ps -u [your system username] | grep "mysqld --skip-grant-tables"

A list with two items should be returned: One is the mysqld & the other is the command you just made. Something like this:

502  1759 ttys004    0:00.11 /Applications/MAMP/Library/bin/mysqld --skip-grant-tables
502  1766 ttys004    0:00.00 grep mysqld

Okay, so now we know the mysqld with skip-grant-tables has process ID 1759, go ahead and kill that like so:

kill 1759

Restart MAMP again & the root password should work as expected now.

Answer 2

Try adding a port to your array! For me, it worked! The port is 8889 by default. You can change it by going to MAMP>Preferences, then the Ports tab. Here's what I think (I haven't tried this!):

'mysql' => array(
    'host' => '127.0.0.1',
    'username' => 'root',
    'password' => '*',
    'port' => '8889',
    'db' => 's'
)

Answer 3

您使用Config::get('mysql/username')两次，第二次应该是Config::get('mysql/password')