PDOException: SQLSTATE[HY000] [2002] No such file or directory

Question

I have put PushChatServer dir in htdocs folder and create database puschat try to run @\"http://localhost/PushChatServer/api/test/database.php\"

Then I got following

Answer 1

I had the same error using PHP 5.6.30 (macOS Sierra) with the simple PDO code like:

$pdo = new PDO('mysql:host=localhost;dbname=db_php', 'root', '');

And I received the same error message. To fix, I changed "localhost" for IP (loopback) "127.0.0.1" in my code:

$pdo = new PDO('mysql:host=127.0.0.1;dbname=db_php', 'root', '');

To test the connection:

$ php -r "new PDO('mysql:host=127.0.0.1;dbname=db_php', 'root', '');"

This work's for me!

Answer 2

PDO treats localhost very particularly:

From http://php.net/manual/en/ref.pdo-mysql.connection.php:

Note: Unix only: When the host name is set to "localhost", then the connection to the server is made thru a domain socket. If PDO_MYSQL is compiled against libmysqlclient then the location of the socket file is at libmysqlclient's compiled in location. If PDO_MYSQL is compiled against mysqlnd a default socket can be set thru the pdo_mysql.default_socket setting.

That why PDO and mysql_connect will give different behavior for localhost.

So, if you want to use a TCP connection with PDO, never use localhost but 127.0.0.1.

Answer 3

Run the following command in shell, I think it will help.

php artisan cache:clear
php artisan config:clear 
php artisan view:clear

Answer 4

Quick test (run in shell):

php -r "new PDO('mysql:hostname=localhost;dbname=test', 'username', 'password');"

SQLSTATE[HY000] [2002] No such file or directory means php cannot find the mysql.default_socket file. Fix it by modifying php.ini file. On Mac it is mysql.default_socket = /tmp/mysql.sock (See PHP - MySQL connection not working: 2002 No such file or directory)

SQLSTATE[HY000] [1044] Access denied for user 'username'@'localhost' CONGRATULATION! You have the correct mysql.default_socket setting now. Fix your dbname/username/password.

Also see Error on creating connection to PDO in PHP