title: Refresh page on multiple computers/browsers after query
body: <p>I'm making a small php game for school. It has to be some kind of multiplayer game called four in a row/four in a line, whatever you want to name it. </p>
  
  <p>Because its a multiplayer game and my playing field is saved in a database, I want to refresh the 'gamefield' if a user is making an action on the page. Like if he inserts a chip in the field, the other user must see it as well, and they have to switch turns. So how can I refresh the page on both computers/browsers when only 1 person is making an action on that page? So that both computers/browsers see the newly inserted chip in the field and the switching of a turn? </p>