Re: Bug?
| From: | Renze Munnik | Date: | Wed, 08 Aug 2001 09:35:36 +0000 |
| Subject: | Re: Bug? | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-61786@lists.php.net to get a copy of this message | ||
On Wed, Aug 08, 2001 at 07:18:26PM +1000, ReDucTor wrote:
> if you use
> echo (float)((8.85-8)*100);
> it works because 8.85 go's to 0.85 and times that by 100, and you get 85
> which is what you get...
Maybe you've heard about dynamic pages and stuff...
Say:
$a = 8.85;
$b = 8;
$c = 100;
$result = (int)(($a-$b)*$c);
And you know... we need an integer. Let's say for inserting into a
db or so. Then it doesn't help converting it to float, does it? I
mean... ofcourse in the above example it returns the correct result,
but let's just change it a bit:
$a = 8.8512;
$b = 7.1237;
$c = 100;
$result_i = (int)(($a-$b)*$c);
$result_f = (float)(($a-$b)*$c);
See the diff between $result_i and $result_f? And if you realy need
an integer, $result_f isn't realy what you're looking for.
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