Laravel - php artisan migrate error

I have installed Laravel on Xammp. Once i go into git bash to run the command "php artisan migrate" I get a error like this:

  [Illuminate\Database\QueryException]

  could not find driver (SQL: select * from information_schema.tables 
where table_schema = blog and table_name = migrations)


  [PDOException]
  could not find driver

Does anyone know why I get this error and what the solution for this could be ?

via Chebli Mohamed