From:             xoneca+phpbugs at gmail dot com
Operating system: Linux 2.6.32-46-generic
PHP version:      5.3.25
Package:          Scripting Engine problem
Bug Type:         Bug
Bug description:printf inconsistent parsing format string

Description:
------------
`printf` is inconsistent parsing the format string. Sometimes it throws a
warning, and sometimes does not.

`printf` doesn't seem to like very much single `%` chars and gets crazy.

Depending on the arguments number, it will print something, or nothing.

Test script:
---------------
printf( '% % % %'); // or echo sprintf(...);
printf( '% % % %', 10);
printf( '% % % %', 10, 20);
printf( '% % % %', 10, 20, 30);
printf( '% % % %', 10, 20, 30, 40);
printf( '% % % %', 10, 20, 30, 40, 50);
// Another example:
printf( '% ## %d ## % ## %d ## %d', 10, 20, 30, 40, 50);


Expected result:
----------------
Throwing a warning at each call, or none at all. But not only sometimes.

Actual result:
--------------
php > printf( '% % % %');
PHP Warning:  printf(): Too few arguments in php shell code on line 1
php > printf( '% % % %', 10);
PHP Warning:  printf(): Too few arguments in php shell code on line 1
php > printf( '% % % %', 10, 20);
% %
php > printf( '% % % %', 10, 20, 30);
% %
php > printf( '% % % %', 10, 20, 30, 40);
% %
php > printf( '% % % %', 10, 20, 30, 40, 50);
% %
php > // Another example:
php > echo sprintf( '% ## %d ## % ## %d ## %d', 10, 20, 30, 40, 50);
# 20 ## # 40 ## 50

-- 
Edit bug report at https://bugs.php.net/bug.php?id=64889&edit=1
-- 
Try a snapshot (PHP 5.4):   
https://bugs.php.net/fix.php?id=64889&r=trysnapshot54
Try a snapshot (PHP 5.3):   
https://bugs.php.net/fix.php?id=64889&r=trysnapshot53
Try a snapshot (trunk):     
https://bugs.php.net/fix.php?id=64889&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=64889&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=64889&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=64889&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=64889&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=64889&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=64889&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=64889&r=notwrong
Not enough info:            
https://bugs.php.net/fix.php?id=64889&r=notenoughinfo
Submitted twice:            
https://bugs.php.net/fix.php?id=64889&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=64889&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=64889&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=64889&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=64889&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=64889&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=64889&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=64889&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=64889&r=mysqlcfg

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