What are common reasons for the error message "Can't connect to local MySQL server through socket" in PHP?

The error message "Can't connect to local MySQL server through socket" typically occurs when PHP is unable to establish a connection to the MySQL server using the specified socket file. This can happen due to incorrect socket file path, MySQL server not running, incorrect permissions on the socket file, or misconfiguration in the PHP code. To solve this issue, you can check the socket file path in your PHP code, ensure that the MySQL server is running, and verify the permissions on the socket file. 

$servername = "localhost";
$username = "username";
$password = "password";
$database = "dbname";
$socket = "/path/to/mysql.sock"; // Update this with the correct path to the MySQL socket file

$conn = new mysqli($servername, $username, $password, $database, null, $socket);

if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} else {
    echo "Connected successfully";
}

Keywords

MySQL PHP socket connection error

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