Bug #54973 [Com]: SimpleXML casts intergers wrong.
| From: | bphelpsen at gmail dot com | Date: | Thu, 02 Jun 2011 18:05:07 +0000 |
| Subject: | Bug #54973 [Com]: SimpleXML casts intergers wrong. | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-161137@lists.php.net to get a copy of this message | ||
Edit report at http://bugs.php.net/bug.php?id=54973&edit=1
ID: 54973
Comment by: bphelpsen at gmail dot com
Reported by: bphelpsen at gmail dot com
Summary: SimpleXML casts intergers wrong.
Status: Bogus
Type: Bug
Package: SimpleXML related
Operating System: Linux
PHP Version: 5.3.6
Block user comment: N
Private report: N
New Comment:
Then why do I get different results when I run this code:
<?php echo "214748364800" / 1024 / 1024 / 1024; ?>
than when I run the example code. Shouldn't they return the same value?
Here is an example, with the same results as my local test:
http://codepad.org/KICl3xHw
Previous Comments:
------------------------------------------------------------------------
[2011-06-02 20:00:54] iliaa@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to
report
a bug at http://bugs.php.net/how-to-report.php
This has nothing to do with SimpleXML, but rather the fact that a numeric string
in PHP by default would converted to an integer.
------------------------------------------------------------------------
[2011-06-01 22:18:27] bphelpsen at gmail dot com
Description:
------------
When an XML node value is an integer SimpleXML always casts it to an int, even if its a float or
double.
Test script:
---------------
<?php
$xml =
simplexml_load_string("<xml><number>214748364800</number></xml>");
echo $xml->number . "\n"; // the proper number
$int = $xml->number / 1024 / 1024 / 1024; // initial cast to an int causes problems
echo $int . "\n";
$double = (double) $xml->number / 1024 / 1024 / 1024; // hard cast to a double fixes it
echo $double . "\n";
?>
Expected result:
----------------
214748364800
200
200
Actual result:
--------------
214748364800
1.9999999990687
200
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/bug.php?id=54973&edit=1