From: greg at chiaraquartet dot net
Operating system: linux
PHP version: 5CVS-2007-10-05 (CVS)
PHP Bug Type: Scripting Engine problem
Bug description: import always conflicts with internal classes
Description:
------------
zend_do_import incorrectly compares an import name to global class names.
It should compare EG(current_namespace) . '::' . importname to check for
conflicting names.
This is because when inside a namespace, to the user, import should behave
in the same manner as a class declaration. This code:
<?php
namespace Foo;
class Exception {}
?>
creates Foo::Exception.
This code:
<?php
namespace Foo;
import Blah::Exception as Exception;
?>
Should essentially work as if the user had typed:
<?php
namespace Foo;
import Blah::Exception as Foo::Exception;
?>
In other words, it should resolve future uses of "Exception" to
"Blah::Exception" and "::Exception" to "Exception" and not complain about
"Exception" conflicting with "::Exception"
Patch for PHP 5:
http://pear.php.net/~greg/fix_import.patch.txt
Patch for PHP 6:
http://pear.php.net/~greg/fix_import.php6.patch.txt
Reproduce code:
---------------
testme.php:
<?php
namespace Blah;
class Exception extends ::Exception {}
?>
test.php:
<?php
namespace Foo;
include 'testme.php';
import Blah::Exception;
$a = new Exception;
throw $a;
?>
Expected result:
----------------
Fatal error: Uncaught exception 'Blah::Exception' in
/home/cellog/workspace/php5/test.php:5
Stack trace:
#0 {main}
thrown in /home/cellog/workspace/php5/test.php on line 5
Actual result:
--------------
Fatal error: Import name 'Exception' conflicts with defined class in
/home/cellog/workspace/php5/test.php on line 4
--
Edit bug report at http://bugs.php.net/?id=42859&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=42859&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=42859&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=42859&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=42859&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=42859&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=42859&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=42859&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=42859&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=42859&r=support
Expected behavior: http://bugs.php.net/fix.php?id=42859&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=42859&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=42859&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=42859&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42859&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=42859&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=42859&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=42859&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=42859&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=42859&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=42859&r=mysqlcfg
