From: wittstruck at mediafinanz dot de
Operating system: Windows XP
PHP version: 5.2.6
PHP Bug Type: Strings related
Bug description: Problem when comparing casted strings
Description:
------------
I'm casting a string to a double; afterwards the casted result does differ
from the original string, but comparing them does not work properly and
leads to a wrong bool.
strcmp works, though.
Reproduce code:
---------------
<?php
$stringAmount = '2008-06-13 14:24:00';
$doubleAmount = (double) $stringAmount;
echo 'doubleAmount: ' . $doubleAmount . ' stringAmount: ' .
$stringAmount;
if ($doubleAmount != $stringAmount)
{
echo '<br/>' . $doubleAmount . ' is not equal to' . $stringAmount;
}
else
{
echo "<br/> both are equal";
}
?>
Expected result:
----------------
doubleAmount: 2008 stringAmount: 2008-06-13 14:24:00
2008 is not equal to2008-06-13 14:24:00
Actual result:
--------------
doubleAmount: 2008 stringAmount: 2008-06-13 14:24:00
both are equal
--
Edit bug report at http://bugs.php.net/?id=45297&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=45297&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=45297&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=45297&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=45297&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=45297&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=45297&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=45297&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=45297&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=45297&r=support
Expected behavior: http://bugs.php.net/fix.php?id=45297&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=45297&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=45297&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=45297&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=45297&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=45297&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=45297&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=45297&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=45297&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=45297&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=45297&r=mysqlcfg