Edit report at http://bugs.php.net/bug.php?id=51544&edit=1
ID: 51544
Comment by: crrodriguez at opensuse dot org
Reported by: public at proside dot fr
Summary: instanceof for static calls
Status: Open
Type: Feature/Change Request
Package: Reflection related
Operating System: Windows XP
PHP Version: 5.3.2
New Comment:
<?php
interface iTest { }
class base {
public static function create() {
if (class_implements(get_called_class(),'iTest')) echo 'iTest';
}
}
class child extends base implements iTest { }
child::create();
Fixes your problem, this is not a PHP bug.
Previous Comments:
------------------------------------------------------------------------
[2010-04-12 22:37:39] public at proside dot fr
Description:
------------
Hy guys,
Here's a problem i faced today : i wanted to know if a base and derived
class having only static functions and using both late static binding
were an implementation of a specific interface.
The problem was that the class base needed to know if its child
implemented a specific interface.
Not easy to explain, the code is easier for a better comprehension :
Test script:
---------------
<?php
interface iTest { }
class base {
public static function create() {
if (self instanceof iTest) echo 'iTest';
}
}
class child extends base implements iTest { }
child::create();
?>
Expected result:
----------------
Normally the result should be 'iTest' because the class 'child'
implements iTest
Actual result:
--------------
Doesn't execute.
Here's the solution i found : i used the ReflectionCLass to emulate that
feature
<?php
interface iTest { }
class base {
public static function create() {
$r = new ReflectionClass(static::$SELF);
if (in_array('iTest', $r->getInterfaceNames())) echo 'iTest';
}
}
class child extends base implements iTest {
protected static $SELF = __CLASS__;
}
child::create();
?>
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/bug.php?id=51544&edit=1
