From: Se dot Krebs at web dot de
Operating system: Win32
PHP version: 5.2.2
PHP Bug Type: Filter related
Bug description: BOOLEAN acts strange
Description:
------------
FILTER_VALIDATE_BOOLEAN never returns null like its mentioned in the
Manual ("otherwise null") without the FILTER_NULL_ON_FAILURE-Option. Even
in the Manual is mentioned, that only String-"Booleans" will filterd, but
true also returns true.
Maybe without the Option the Manual is a kind of out-of-date, but the
fact, that "false" is a Failure, but "true" isnt, seems strange to me.
Reproduce code:
---------------
var_dump( filter_var('false', FILTER_VALIDATE_BOOLEAN));
var_dump( filter_var(false, FILTER_VALIDATE_BOOLEAN));
var_dump( filter_var('true', FILTER_VALIDATE_BOOLEAN));
var_dump( filter_var(true, FILTER_VALIDATE_BOOLEAN));
var_dump( filter_var('false', FILTER_VALIDATE_BOOLEAN,
FILTER_NULL_ON_FAILURE)); // bool(false)
var_dump( filter_var(false, FILTER_VALIDATE_BOOLEAN,
FILTER_NULL_ON_FAILURE)); // NULL
var_dump( filter_var('true', FILTER_VALIDATE_BOOLEAN,
FILTER_NULL_ON_FAILURE)); // bool(false)
var_dump( filter_var(true, FILTER_VALIDATE_BOOLEAN,
FILTER_NULL_ON_FAILURE)); // bool(false)
Expected result:
----------------
// first 4 lines:
bool (false)
NULL
bool (true)
NULL
// last 4 lines the same
Actual result:
--------------
bool (false)
bool (false)
bool (true)
bool (true)
bool (false)
NULL
bool (true)
bool (true)
--
Edit bug report at http://bugs.php.net/?id=41305&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=41305&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=41305&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=41305&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=41305&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=41305&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=41305&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=41305&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=41305&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=41305&r=support
Expected behavior: http://bugs.php.net/fix.php?id=41305&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=41305&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=41305&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=41305&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41305&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=41305&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=41305&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=41305&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=41305&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=41305&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=41305&r=mysqlcfg
