Числа Фибоначчи

function fibonacchi($number)
{	
	$next  = 1;
	$prev  = 1;

	for ($i=0; $i <$number ; $i++) 
	{ 
		echo $next;
		echo "<br>";

		$result = $next + $prev;
		$prev = $next;
		$next = $result;
	}
}

fibonacchi(10);