From: chris at acsi dot ca
Operating system: Windows XP Sp2
PHP version: 5.1.1
PHP Bug Type: Math related
Bug description: base_convert is off on numbers greater than 13 decimal places
Description:
------------
base_convert($str, 10, 16) will not function properly with numbers greater
than 13 characters.
Reproduce code:
---------------
-BEGIN SCRIPT-
$string=(string)"Hello Kitty".(string)time();
$hash=md5($string);
$hash=strtoupper($hash); // Easier to
Read
echo("<br>1Hash is '$hash'<br>");
settype($hash, "string");
echo("<br>2Hash is '$hash'<br>");
$hash=base_convert($hash, '16', '10'); // Flick the string
from hex to
dec
echo("<br>3Hash is '$hash'<br>");
$hash=base_convert($hash, '10', '16'); $hash=strtoupper($hash);
echo("<br>4Hash is '$hash'<br>"); // Flick the string back
$hash=strtoupper($hash); // Easier to
read
echo("<br>5Hash is '$hash'<br>");
-END SCRIPT-
Expected result:
----------------
I can't show the exact expected number, as my MS Calc in hex mode can't
handle this number, but it's pretty obvious that all the trailing 0's are
wrong.
Actual result:
--------------
Here is the output text:
1Hash is '9789A9C80C9BFB6B40AD83670F14D64A'
2Hash is '9789A9C80C9BFB6B40AD83670F14D64A'
3Hash is '201428215609899446868600620602402480202'
4Hash is '9789A9C80C9BF8000000000000000000'
5Hash is '9789A9C80C9BF8000000000000000000'
--
Edit bug report at http://bugs.php.net/?id=35874&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=35874&r=trysnapshot44
Try a CVS snapshot (PHP 5.1):
http://bugs.php.net/fix.php?id=35874&r=trysnapshot51
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=35874&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=35874&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=35874&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=35874&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=35874&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=35874&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=35874&r=support
Expected behavior: http://bugs.php.net/fix.php?id=35874&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=35874&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=35874&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=35874&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=35874&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=35874&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=35874&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=35874&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=35874&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=35874&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=35874&r=mysqlcfg
