note 106290 added to language.oop5.interfaces
| From: | FXLaviron at osu1 dot php dot net | Date: | Tue, 25 Oct 2011 16:12:14 +0000 |
| Subject: | note 106290 added to language.oop5.interfaces | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-184120@lists.php.net to get a copy of this message | ||
The error "Can't inherit abstract function IB::f() (previously declared abstract in
IA)" in the following code
<?php
interface IA { public function f(); }
interface IB { public function f(); }
class Test implements IA, IB {
public function f() {
echo "f";
}
}
$o = new Test();
$o->f();
?>
can be avoided (if appropriate) by adding a ancestor interface to IA and IB, and moving the common
method to it:
<?php
interface IAncestor { public function f(); }
interface IA { }
interface IB extends IAncestor { }
class Test implements IA, IB {
public function f() {
echo "f";
}
}
$o = new Test();
$o->f();
?>
----
Server IP: 69.147.83.197
Probable Submitter: 93.20.210.161
----
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