From: baldurien at bbnwn dot eu
Operating system: Irrelevant
PHP version: 5.2.0
PHP Bug Type: Feature/Change Request
Bug description: A class can't implements interface implemented by implemented
interface/classes
Description:
------------
Hi,
Since php5.2, all my classes have error due to something that changed in
php5.2 :
Fatal error: Class XtfLexer cannot implement previously implemented
interface XtfParserRegistrable
The reason of that ?
Well take a look at the classes (the code does not interest you as it's
not the problem)
interface XtfParserRegistrable {}
interface XtfHeaderHandler extends XtfParserRegistrable {}
class XtfLexer implements XtfHeaderHandler, XtfParserRegistrable {}
Because the interface extends XtfParserRegistrable, the XtfLexer can not
implements XtfParserRegistrable itself.
This is STUPID, REALLY STUPID.
What happens if one day I change the interface/classes I
implements/extends, and if I still wish to benefit from one interface that
is *possibly* implemented by my parents interfaces/classes?
Well : it will fails.
Reproduce code:
---------------
Try this :
interface XtfParserRegistrable {}
interface XtfHeaderHandler extends XtfParserRegistrable {}
class XtfLexer implements XtfHeaderHandler, XtfParserRegistrable {}
Expected result:
----------------
We can implements interface implemented by parent class/interface, and no
(fatal) error should be thrown.
Actual result:
--------------
We can't.
--
Edit bug report at http://bugs.php.net/?id=39403&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=39403&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=39403&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=39403&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=39403&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=39403&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=39403&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=39403&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=39403&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=39403&r=support
Expected behavior: http://bugs.php.net/fix.php?id=39403&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=39403&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=39403&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=39403&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=39403&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=39403&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=39403&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=39403&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=39403&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=39403&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=39403&r=mysqlcfg
