oelna

<?php
	/*
		Generate however many unique bingo cards you require (should be fewer than 10k though).
		This is not meant to compute ALL possible bingo cards, obviously, but to help set up a
		nice amount of cards for play.
		If you require a free space somewhere on the board, you should probably tweak the output,
		not the generator.
		I wrote this because existing solutions on stackoverflow were in languages I could not
		test as easily and many existing generator websites generate crap cards that do not 
		adhere to the bingo number distribution in the 5 rows, so you spend an eternity looking