Bug #53045 [NEW]: broken result of intval()

From: Date: Tue, 12 Oct 2010 16:34:16 +0000
Subject: Bug #53045 [NEW]: broken result of intval()
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-155112@lists.php.net to get a copy of this message 
From:             
Operating system: FreeBSD
PHP version:      5.2.14
Package:          *Math Functions
Bug Type:         Bug
Bug description:broken result of intval()

Description:
------------
intval(log(8,2)) gives 2 as result, expected 3

Test script:
---------------
<?php
$maxrounds = log(8, 2);
echo 'test:'.$maxrounds."\n";
echo 'test:'.log(8,2)."\n";
echo 'intval:'.intval(3.0000)."\n";
echo 'intval:'.intval(log(8,2))."\n";
echo 'intval:'.intval($maxrounds)."\n";
echo 'intval+1:'.(intval($maxrounds)+1)."\n";
echo 'intval+1:'.intval($maxrounds+1)."\n";
echo 'intval+1:'.intval($maxrounds + 1)."\n";
echo 'sprintf dec:'.sprintf('%d', $maxrounds)."\n";
echo 'sprintf float:'.sprintf('%f', $maxrounds)."\n";
echo 'sprintf float non-locale:'.sprintf('%F', $maxrounds)."\n";
var_dump($maxrounds)."\n";
?>


Expected result:
----------------
test:3
test:3
intval:3
intval:3
intval:3
intval+1:4
intval+1:4
intval+1:4
sprintf dec:3
sprintf float:3.000000
sprintf float non-locale:3.000000
float(3)


Actual result:
--------------
test:3
test:3
intval:3
intval:2
intval:2
intval+1:3
intval+1:3
intval+1:3
sprintf dec:2
sprintf float:3.000000
sprintf float non-locale:3.000000
float(3)


-- 
Edit bug report at http://bugs.php.net/bug.php?id=53045&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=53045&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=53045&r=trysnapshot53
Try a snapshot (trunk):              http://bugs.php.net/fix.php?id=53045&r=trysnapshottrunk
Fixed in SVN:                        http://bugs.php.net/fix.php?id=53045&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53045&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=53045&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=53045&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=53045&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=53045&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=53045&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=53045&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=53045&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=53045&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=53045&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=53045&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=53045&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=53045&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=53045&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=53045&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=53045&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=53045&r=mysqlcfg

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