PHP League Matches generator

[TheUnreal]

Hello.

I want to make a script that will generate all possible matches from 1 to 16.

More info: I have 16 players in a tournament. I am developing league system and I need a script that will generate all the possible matches by rounds.

All possible matches - I mean that Player1 vs player2, player 3 vs player 4, players 1 vs player 3, player 16 vs 15, player 15 vs 5 etc...........

My table:

Playe1 | Player2| Round

 

In round = 1 it should be all league matches for all players 1-16,

in round = 2 the same, just a match that already was in round = 1 can't be in round = 2 

In round = 3 the same, just match that already was in round =1, round = 2 can't be in round = 3

.. etc untill all possible combinations are done

 

I am trying to figure it out for a while and couldnt find a solution. Any help will be appreciated!

[DaveyK]

The system shouldnt me too hard to complete, but no one here is going to build it for you so the real thing we are looking for is some code you already wrote and where you got stuck.