#47304 [Fbk]: typecast of numeric string to float produces strange result
| From: | jani@php.net | Date: | Wed, 04 Feb 2009 22:22:23 +0000 |
| Subject: | #47304 [Fbk]: typecast of numeric string to float produces strange result | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-133513@lists.php.net to get a copy of this message | ||
ID: 47304
Updated by: jani@php.net
Reported By: lennartvdd at mailordersolutions dot nl
Status: Feedback
-Bug Type: Variables related
+Bug Type: Scripting Engine problem
Operating System: Server 2003 for SBS SP2 - IIS
PHP Version: 5.2.8
New Comment:
Forgot this, output on my linux server using PHP 5.2.8:
float(-39)
float(39)
float(17)
float(-17)
float(-39)
float(39)
float(17)
float(-17)
Previous Comments:
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[2009-02-04 22:21:37] jani@php.net
Please try using this CVS snapshot:
http://snaps.php.net/php5.2-latest.tar.gz
For Windows:
http://windows.php.net/snapshots/
------------------------------------------------------------------------
[2009-02-04 12:41:54] lennartvdd at mailordersolutions dot nl
Description:
------------
Typecasting or converting some numeric strings variables to a float
value does not work as expected.
Reproduce code:
---------------
$var = (float)"-39.000";
var_dump($var);
$var = (float)"39.000";
var_dump($var);
$var = (float)"17.000";
var_dump($var);
$var = (float)"-17.000";
var_dump($var);
$var = "-39.000" + 0;
var_dump($var);
$var = "39.000" + 0;
var_dump($var);
$var = "17.000" + 0;
var_dump($var);
$var = "-17.000" + 0;
var_dump($var);
Expected result:
----------------
float(-39)
float(39)
float(17)
float(-17)
float(-39)
float(39)
float(17)
float(-17)
Actual result:
--------------
float(-38.:)
float(38.:)
float(16.:)
float(-16.:)
float(-38.:)
float(38.:)
float(16.:)
float(-16.:)
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=47304&edit=1