[ 'dsn' => 'sql:;dbname=sql_database', 'username' => 'sql_username', 'password' => 'sql_password', 'options' => [ PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION ] ], 'mail' => [ 'host' => 'email_host', 'port' => 'email_port', 'name' => 'email_name', 'username' => 'email_username', 'password' => 'email_password', ], ];