European Ph.D. student salary range web site
Partial answer;
In the Netherlands you have a couple of different possibilities when it comes to PhDs. You can be a student (and thus have to pay), a payed phd (who also has teaching obligations), and an external PhD (who, depending on the professor, might have to pay). 

The paid PhDs salary per month vary from 2,125 euro in the first year to 2,717 euro (in the fourth year, which should be the last year) according to the VSNU (look at the P column). There is also a 13th month and vacation money. Of course tax and social premiums still has to be deducted to get to the salary you get on your account.