'second_database' => [
    'driver'    => env('DB_CONNECTION_2'),
    'host'      => env('DB_HOST_2'),
    'port'      => env('DB_PORT_2'),
    'database'  => env('DB_DATABASE_2'),
    'username'  => env('DB_USERNAME_2'),
    'password'  => env('DB_PASSWORD_2'),
],

//main database
DB_CONNECTION=mysql
DB_HOST=mysql.myhost.com
DB_PORT=22
DB_DATABASE=main_database
DB_USERNAME=johnny
DB_PASSWORD=pass123

//second database
DB_CONNECTION_2=mysql
DB_HOST_2=mysql.myhost.com
DB_PORT_2=22
DB_DATABASE_2=second_database
DB_USERNAME_2=johnny
DB_PASSWORD_2=pass123

//first approach
DB::connection('second_database')->create('users', function($table){
    $table->email = $data['email'];
    $table->name = $data['name'];
    $table->password = 123123;
    $table->save();
});

//other approach
DB::connection('second_database')->table('users')->create([
    'name' => $data['name'],
    'email' => $data['email'],
    'password' => Hash::make($data['password']),
]);