Bug #75664 [NEW]: sprintf %u results in 0 for numbers with more digits than PHP_INT_MAX
| From: | erik at evanv dot nl | Date: | Sun, 10 Dec 2017 23:35:09 +0000 |
| Subject: | Bug #75664 [NEW]: sprintf %u results in 0 for numbers with more digits than PHP_INT_MAX | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-213046@lists.php.net to get a copy of this message | ||
From: erik at evanv dot nl
Operating system: linux 4.14.4
PHP version: 7.2.0
Package: Strings related
Bug Type: Bug
Bug description:sprintf %u results in 0 for numbers with more digits than PHP_INT_MAX
Description:
------------
Code speaks for itself. This can lead to data corruption.
A decent solution would be to display unknown least significant digits
as 0 just like %f.
Alternative would be an ArithmeticError.
Test script:
---------------
php > $var = PHP_INT_MAX * 2;
php > echo sprintf("%f", $var);
18446744073709551616.000000
php > echo sprintf("%u", $var);
0
Expected result:
----------------
18446744073709551616
Actual result:
--------------
0
--
Edit bug report at https://bugs.php.net/bug.php?id=75664&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75664&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75664&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75664&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=75664&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=75664&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=75664&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=75664&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=75664&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=75664&r=support
Expected behavior: https://bugs.php.net/fix.php?id=75664&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=75664&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=75664&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=75664&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75664&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=75664&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=75664&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=75664&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=75664&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=75664&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=75664&r=mysqlcfg