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Posted by ZeldorBlat on 05/14/07 16:07
On May 14, 12:01 pm, shortbackandsides...@spam.hairdresser.net wrote:
> This snippet:
> <?php
> $price=round(111,2);
> $tax=round($price*0.175,2);
> $total=round($price*1.175,2);
>
> echo $price <br />";
> echo "Tax at 17.5% $tax<br />";
> echo "Total $total<br />";
> ?>
> gives the result:
>
> 111
> Tax at 17.5% 19.42
> Total 130.43
>
> Two questions.
> Why the rounding difference?
> and is there a standard function to force the 111 to display as 111.00
> (given that price won't always be a whole number)?
When I run your code on my system I get 19.43 and 130.43. It could be
a platform or library issue -- I'm running PHP 5.1.6 on Fedora Core 6
Linux.
As for your other question, you can force the display of the zeros
using either number_format() or money_format():
<http://www.php.net/number_format>
<http://www.php.net/money_format>
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