Edit report at https://bugs.php.net/bug.php?id=53727&edit=1
ID: 53727
Comment by: jbondc at openmv dot com
Reported by: mattknight at xymail dot co dot uk
Summary: Inconsistent behavior of is_subclass_of with
interfaces
Status: Closed
Type: Bug
Package: Class/Object related
Operating System: Gentoo x86_64
PHP Version: 5.3.5
Assigned To: dmitry
Block user comment: N
Private report: N
New Comment:
This patch also modifies the is_a() api by allowing a string as a first
argument.
That seems wrong to me within the 5.3 branch.
Previous Comments:
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[2011-07-15 15:17:18] [email protected]
Automatic comment from SVN on behalf of philip
Revision: http://svn.php.net/viewvc/?view=revision&revision=313271
Log: Updated is_a() and is_subclass_of() tests as per the removed E_WARNING
from r313162 which was inspired by discussion after r312904 and PHP Bug #53727
------------------------------------------------------------------------
[2011-07-04 11:00:53] [email protected]
This bug has been fixed in SVN.
Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
Thank you for the report, and for helping us make PHP better.
------------------------------------------------------------------------
[2011-07-04 10:55:39] [email protected]
Automatic comment from SVN on behalf of dmitry
Revision: http://svn.php.net/viewvc/?view=revision&revision=312904
Log: Fixed bug #53727 (Inconsistent behavior of is_subclass_of with interfaces)
------------------------------------------------------------------------
[2011-06-30 18:45:09] ralph at smashlabs dot com
Dmitry,
The patch called fix-is_subclass_of-PHP_5_3.diff does the following:
* Alters the existing Zend/tests/is_a.phpt to alter the bad
expectation,
* Adds a new test file for is_subclass_of() as
Zend/tests/is_subclass_of.phpt
* Finally alters is_a_impl() in the following ways:
* If an object was provided as the first parameter, and we are
inside of an is_subclass_of call (known by the flag
only_subclass), then assign the class entry of the object
* Next, determine if the instance_ce provided is the same class
entry as that we are testing against (parameter 2 of the
is_subclass_of() call ... if it is, return false
* Now that we know the instance_ce is not the same as the class
entry for the test class, allow is_a_impl to pass these class
entries to instanceof_function, and return that value
It is pretty straight forward, and any way I look at it, there are
few consequences to this patch.
Thanks,
Ralph
------------------------------------------------------------------------
[2011-01-13 09:13:50] mattknight at xymail dot co dot uk
Yes, it would also be fine to return false when comparing against an ancestral
interface, just so long as the behaviour is consistent.
Expected result:
----------------
false
true
false
true
------------------------------------------------------------------------
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