<?php

	$b=rand(1,4);	// if 4, then nothing will be executed.

	if($b==1)
		b1();
	elseif($b==2)
		b2();
	elseif($b==3)
		b3();

	function b1()
	{
		print("b1\n");
	}

	function b2()
	{
		print("b2\n");
	}

	function b3()
	{
		print("b3\n");
	}



?>