[SOLVED] Why does it print 0?

[ryy705]

Hello,

The following code prints out 0.  Does anyone know why?  I expected it to print 36.

<?php
function a($number)
{
  return (b($number) * $number);
}

function b(&$number)
{
  ++$number;
}
echo a(5);
?>

[DarkWater]

b() doesn't return anything, and 0 * 6 is 0.

 

EDIT: This should work though:

<?php
function a($number)
{
  return (b($number) * $number);
}

function b(&$number)
{
return ++$number;
}
echo a(5);
?>

[ryy705]

I see it now. Thanks.