@dalton_moen

In Yii2 framework, you can use the yiidbConnection class to connect to the MySQL server and check if it is accessible by pinging it. Here's how you can do it:

Open the configuration file config/db.php and check if the MySQL server parameters are correctly configured. The file should contain something similar to this:

return [
    'class' => 'yiidbConnection',
    'dsn' => 'mysql:host=localhost;dbname=mydatabase',
    'username' => 'root',
    'password' => '',
    'charset' => 'utf8',
];

In your controller or model, create an instance of the yiidbConnection class and call the open() method to make the initial connection. Then, you can use the ping() method to check if the server is accessible. Here's an example:

use yiidbConnection;

// ...

$connection = new Connection([
    'dsn' => 'mysql:host=localhost;dbname=mydatabase',
    'username' => 'root',
    'password' => '',
    'charset' => 'utf8',
]);

try {
    $connection->open();
    if ($connection->ping()) {
        echo 'MySQL server is accessible!';
    } else {
        echo 'Unable to ping the MySQL server.';
    }
} catch (Exception $e) {
    echo 'Failed to connect to MySQL server: ' . $e->getMessage();
}

This code creates a new Connection object with the same parameters as in the configuration file, opens the connection, and then pings the server using the ping() method. If the server is accessible, it will echo "MySQL server is accessible!".

Note: Make sure to replace the connection parameters with the correct values for your MySQL server.

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