From:             roastduck at qq dot com
Operating system: windows xp
PHP version:      5.3.19
Package:          PDO related
Bug Type:         Bug
Bug description:pdo sqlite round function can't work correct

Description:
------------
when I used pdo for the sql "select round(863521.777777778, 2) as a", it
gets 
wrong result 863521.780000001

Test script:
---------------
<?php
$db = new PDO("sqlite:../test.s3db");
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

$st = $db->query('select round(863521.777777778, 2) as a');
$data = $st->fetchAll();
print_r($data);

$st = $db->query('select round(372366.577777778, 2) as a');
$data = $st->fetchAll();
print_r($data);


Expected result:
----------------
Array
(
    [0] => Array
        (
            [a] => 863521.780000001
            [0] => 863521.780000001
        )

)
Array
(
    [0] => Array
        (
            [a] => 372366.58
            [0] => 372366.58
        )

)


-- 
Edit bug report at https://bugs.php.net/bug.php?id=63684&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=63684&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=63684&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=63684&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=63684&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=63684&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=63684&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=63684&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=63684&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=63684&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=63684&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=63684&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=63684&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=63684&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63684&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=63684&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=63684&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=63684&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=63684&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=63684&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=63684&r=mysqlcfg

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