From:             slafontaine at avance dot info
Operating system: Windows XP
PHP version:      5.1.2
PHP Bug Type:     Class/Object related
Bug description:  is_callable returns true for interfaces

Description:
------------
When you use is_callable to check if a method is callable on an interface,
it returns true which might be because Classes and Interfaces share the
same namespace.

Reproduce code:
---------------
interface MyInterface
{
    function callableFunc();
}

if (is_callable(array("MyInterface", "callableFunc"))) {
    print("Is callable!");
    call_user_func(array("MyInterface", "callableFunc"));
} else {
    print("Is NOT callable!");
}

Expected result:
----------------
Is NOT callable!

Actual result:
--------------
Is callable!

Fatal error:  Cannot call abstract method MyInterface::callableFunc() in
path/to/file on line ###

-- 
Edit bug report at http://bugs.php.net/?id=36635&edit=1
-- 
Try a CVS snapshot (PHP 4.4): 
http://bugs.php.net/fix.php?id=36635&r=trysnapshot44
Try a CVS snapshot (PHP 5.1): 
http://bugs.php.net/fix.php?id=36635&r=trysnapshot51
Try a CVS snapshot (PHP 6.0): 
http://bugs.php.net/fix.php?id=36635&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=36635&r=fixedcvs
Fixed in release:             
http://bugs.php.net/fix.php?id=36635&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=36635&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=36635&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=36635&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=36635&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=36635&r=notwrong
Not enough info:              
http://bugs.php.net/fix.php?id=36635&r=notenoughinfo
Submitted twice:              
http://bugs.php.net/fix.php?id=36635&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=36635&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=36635&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=36635&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=36635&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=36635&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=36635&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=36635&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=36635&r=mysqlcfg

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