From:             
Operating system: ubuntu
PHP version:      5.3.6
Package:          PDO related
Bug Type:         Bug
Bug description:PDO::query throws exceptions with null optional arguments

Description:
------------
In 5.3.3 (sorry, I can't load 5.3.6 to confirm), supplying the optional
fetchmode arguments (args 2,3,4) as NULL throws fatal exceptions. In 5.2,
those arguments as NULL were ignored. Optional arguments supplied as NULL
should always be ignored unless the NULL is significant to the logic. It
looks to me like you now have to call PDO::query with exactly the right
number of arguments (1, 2, 3, or 4) to avoid bombing the script.

Test script:
---------------
$db=new PDO($dsn);

unset($fetchmode,$fetch2,$fetch3);

$db->query('select * from table',$fetchmode,$fetch2,$fetch3);

//throws fatal exception

$fetchmode=0;

$db->query('select * from table',$fetchmode,$fetch2,$fetch3);

//throws different fatal exception



Expected result:
----------------
I expect query to ignore fetchmode when it is null.

Actual result:
--------------
query fails fatally

-- 
Edit bug report at http://bugs.php.net/bug.php?id=54545&edit=1
-- 
Try a snapshot (PHP 5.2):            
http://bugs.php.net/fix.php?id=54545&r=trysnapshot52
Try a snapshot (PHP 5.3):            
http://bugs.php.net/fix.php?id=54545&r=trysnapshot53
Try a snapshot (trunk):              
http://bugs.php.net/fix.php?id=54545&r=trysnapshottrunk
Fixed in SVN:                        
http://bugs.php.net/fix.php?id=54545&r=fixed
Fixed in SVN and need be documented: 
http://bugs.php.net/fix.php?id=54545&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=54545&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=54545&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=54545&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=54545&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=54545&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=54545&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=54545&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=54545&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=54545&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=54545&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=54545&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=54545&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=54545&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=54545&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=54545&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=54545&r=mysqlcfg

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