Bug #74355 [NEW]: DateInterval::format() with "%F" sometimes shows incorrect value by 1us
From: for-bugs at hnw dot jp
Operating system: Any
PHP version: 7.1.3
Package: Date/time related
Bug Type: Bug
Bug description:DateInterval::format() with "%F" sometimes shows incorrect value by 1us
Description:
------------
From PHP 7.1.0, DateInterval::format() supports "%F" parameter which
shows fraction of DateInterval. However, sometimes "%F" prints incorrect
value because of floating point inaccuracy.
Test script:
---------------
<?php
$dt1=new DateTime("2000-01-01 00:00:00");
$dt2=new DateTime("2006-01-02 03:04:05.524287");
$interval = $dt1->diff($dt2);
var_dump($interval->format("%R%Y-%M-%D %H:%I:%S.%F"));
Expected result:
----------------
string(25) "+06-00-01 03:04:05.524287"
Actual result:
--------------
string(25) "+06-00-01 03:04:05.524286"
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Edit bug report at https://bugs.php.net/bug.php?id=74355&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=74355&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=74355&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=74355&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=74355&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=74355&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=74355&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=74355&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=74355&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=74355&r=support
Expected behavior: https://bugs.php.net/fix.php?id=74355&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=74355&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=74355&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=74355&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74355&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=74355&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=74355&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=74355&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=74355&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=74355&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=74355&r=mysqlcfg
Thread (6 messages)
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