Bug #74254 [NEW]: Data judgment problem
| From: | 290605830 at qq dot com | Date: | Thu, 16 Mar 2017 03:40:56 +0000 |
| Subject: | Bug #74254 [NEW]: Data judgment problem | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-207864@lists.php.net to get a copy of this message | ||
From: 290605830 at qq dot com
Operating system: windows 7
PHP version: 7.0.16
Package: Output Control
Bug Type: Bug
Bug description:Data judgment problem
Description:
------------
162.95 multiplied by 100 and not equal to 16295, the other digits tested
were normal
Test script:
---------------
$a = 162.95;
$b = 16295;
$c = (double)($a*100);
$b = (double)$b;
if($c!=$b)
{
echo "<br/>not eq ,c=".$c.",b=".$b;
}else{
echo "eq";
}
Expected result:
----------------
The result of running this script should be equal
Actual result:
--------------
Actual results are not equal
--
Edit bug report at https://bugs.php.net/bug.php?id=74254&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74254&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74254&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74254&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=74254&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=74254&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=74254&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=74254&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=74254&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=74254&r=support
Expected behavior: https://bugs.php.net/fix.php?id=74254&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=74254&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=74254&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=74254&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74254&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=74254&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=74254&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=74254&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=74254&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=74254&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=74254&r=mysqlcfg