How can I access PDO in MAMP? - php

Question

I'm setting up a PDO connection in a test script:
use app\SomeDAO;
class SomeTest extends \PHPUnit_Framework_TestCase
{
protected $db;
public function setUp()
{
$dsn = "mysql:host=localhost;dbname=baseball;user=root;password=root";
$this->db = new PDO($dsn);
}
I'm getting an error:
PDOException: SQLSTATE[HY000] [2002] No such file or directory.
How can I use PDO here?

Answer 1

In Unix based (like linux, bsd, or OS X) systems, with MySQL localhost is secret code for try-to-use-a-socket, unless a you force it via a protocol flag to not do this (and no one ever does this). Just remember localhost usually equals socket file.
If Mysql in your MAMP is running in non-socket mode, you can try replacing the host value with 127.0.0.1 which connects via TCP on via port to the local machine--you'll need to figure out which port it's running on if it's not the default port.
If you look at the MAMP start script
less /Applications/MAMP/bin/startMysql.sh
You can see if it's starting in socket mode, and what file it's using if it has a config param like:
--socket=/Applications/MAMP/tmp/mysql/mysql.sock
You can also investigate what open socket mysql might be using by following the answer in this question: error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)'
If you're running in socket mode, you need to make sure PDO knows the path to the socket file. One way to do this is specify the unix_socket instead of host in the dsn:
$dsn = "mysql:unix_socket=/Applications/MAMP/tmp/mysql/mysql.sock;dbname=baseball;user=root;password=root";

Answer 2

I had problem like that at MAMP. My decided it, when I connected with PDO I used next line code:
$this->pdo = new \PDO("mysql:unix_socket=/Applications/MAMP/tmp/mysql/mysql.sock;port=8889;dbname=mydatabase;charset=utf8", 'root', 'root');