What is The best free Website hosting service provider? That support mysql y php .
I'm using http://freewha.com
i am using www.hostinger.com
000webhost and hostinger offer free hosting with PHP and MySQL, there are more free host but these two are the best.
Do you want a server, or do you want a free Website hosting service provider? There is a big difference between the two, and I would like a bit more detail on what you are trying to ask for before I answer.
I would recommend https://www.000webhost.com/free-mysql-hosting I have never used it, but several of my friends have used it with great success.