PDO connection error when using symfony and MAMP

问题:

Getting an PDO error when trying to do php symfony doctrine:insert-sql
The error I get:

Warning: PDO::__construct(): [2002] Connection refused (trying to connect via tcp://127.0.0.1:3306) in /Users/johannes/Programmering/PHP/htdocs/symfony/sfprojects/lib/vendor/symfony/lib/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Connection.php on line 470

databases.yml

    all:
    doctrine:
    class: sfDoctrineDatabase
    param:
      dsn: mysql:host=127.0.0.1;dbname=jobeet;
      username: root
      password: root

Doing a mysql -u root -p jobeet with "root" as password gives me access, so no problem there. And yes, the mysql that I run is MAMP's.

Thanks for any help.

回答1:

MAMP by default doesn't allow TCP connections. You can either turn it on or use sockets.

Changing your dsn as @Tom suggests should fix your issues. Weird as it is but using localhost instead of 127.0.0.1 makes that mysql connects through sockets.

http://dev.mysql.com/doc/refman/5.0/en/connecting.html :

On Unix, MySQL programs treat the host name localhost specially, in a way that is likely different from what you expect compared to other network-based programs. For connections to localhost, MySQL programs attempt to connect to the local server by using a Unix socket file. This occurs even if a --port or -P option is given to specify a port number. To ensure that the client makes a TCP/IP connection to the local server, use --host or -h to specify a host name value of 127.0.0.1, or the IP address or name of the local server. You can also specify the connection protocol explicitly, even for localhost, by using the --protocol=TCP option.

回答2:

MAMP PRO 2.x
I was able to solve this and many similar issues by simply unchecking "Allow local access only" in the MySQL prefs on the MAMP control panel.

MAMP PRO 3.x
As stated by Kendrick:

回答3:

I had the same error when attempting to build my tables in Symfony and using MAMP. I fixed the issue by changing my dsn line, in the databases.yml file, to the following:

dsn: 'mysql:host=localhost;dbname=jobeet;unix_socket=/Applications/MAMP/tmp/mysql/mysql.sock'

回答4:

Looks right. Here would be the exact equivalent from a working databases.yml I'm using, in case it's of any use:

dsn: 'mysql:host=localhost;dbname=jobeet'