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Bug #14402 round() outputs too many digits
Submitted: 2001-12-10 09:47 UTC Modified: 2002-01-02 14:06 UTC
From: michiel at parse dot nl Assigned:
Status: Closed Package: Math related
PHP Version: 4.1.0RC5 OS: Linux-2.4.14 (Slackware 8.0)
Private report: No CVE-ID: None
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From: michiel at parse dot nl
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 [2001-12-10 09:47 UTC] michiel at parse dot nl 
<?
$int = 0.293847289472983; 
echo $int ."\n"; 
echo round($int,2) . "\n"; 
echo round((int)$int,2) . "\n"; 
echo round((float)$int,2) . "\n"; 
echo round((double)$int,2) . "\n"; 
?>
outputs on php 4.0.6: 
0.29384728947298 
0.29 
0 
0.29 
0.29 

however, using php 4.1.0, it outputs: 
0.29384728947298299761570206101168878376483917236328125 
0.289999999999999980015985556747182272374629974365234375 
0 
0.289999999999999980015985556747182272374629974365234375 
0.289999999999999980015985556747182272374629974365234375 

is this a bug, or a new 'feature' ? Closest report I found was http://marc.theaimsgroup.com/?l=php-dev&m=100750316722784&w=2 on the php-dev mailinglist.

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 [2001-12-10 09:51 UTC] michiel at parse dot nl 
Changed distro/php version for clarity.
 [2001-12-11 16:16 UTC] derick@php.net 
weird, this works fine for me (PHP cgi).

Derick
 [2001-12-12 11:30 UTC] sniper@php.net 
can't reproduce either with PHP 4.2.0-dev.

Try the latest CVS snapshot: http://snaps.php.net/

--Jani
 [2002-01-02 14:06 UTC] lobbin@php.net 
No feedback. Closing.
 
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