simplify an elseif

[mrnoisy]

I know there will be a simple way to do this but I can't figure it out without an infinite elseif structure.

Basically for every four $totalamount purchased a $freebonus is to be added.

if ($totalamount >= 4 and $totalamount < 8)
 {
 $freebonus = 1;
 }
 elseif ($totalamount >= 8 and $totalamount < 12)
 {
 $freebonus = 2;
 }
 elseif ($totalamount >= 12 and $totalamount < 16)
 {
 $freebonus = 3;
 }

[lZakl]

Would something like this do the trick..?

<?
// This is your input number... It wil be the one 
// that changes via form input or whatever, for 
// testing I just put 158 here to make sure the 
// script works ok. 
$totalamount = 158; 
$count = 0;
$freebonus = 0;
while ($totalamount >= 0)
{
$bcount = 3;
  while ($bcount >= 0)
  {
   if (($bcount == 0) and ($totalamount >= 1))
    {
    $freebonus = $freebonus + 1; 
    }
  $bcount = $bcount - 1;
  $totalamount = $totalamount - 1;
$count = $count + 1; //for testing purposes
  }
  
}
echo "<br><br><H1>\$freebonus is $freebonus<br>";
?>

I tested it, and it adds 1 to $freebonus, for every 4 $totalamount. I think this is what you are asking for..?

-- Zak

<added> I found a minor problem and fixed it...

[lZakl]

mrnoisy, I too made it more difficult than it had to be.. lol, I was sitting and thought "hmmmm if I divided $totalamount by four, and used the floor method to get it down to the 1, without decimals... that would give me the same number! lol I feel pretty dumb...

Heres the code you want:

$totalamount = 232; // just to give us a fun # to work with.
$fbonus = floor($totalamount / 4);
echo "<br><br><H1>\$fbonus is $fbonus<br>";

-- Zak

[mrnoisy]

Thanks lZakl, the second method is perfect. I've never come across the floor function before, very handy.

[lZakl]

For future reference, you may look at ceil also. It does the same thing, but goes UP to the one. So ceil(1.1) would return 2.