note 61562 added to language.oop5.visibility
| From: | c3 at epetersen dot org | Date: | Tue, 07 Feb 2006 01:50:34 +0000 |
| Subject: | note 61562 added to language.oop5.visibility | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-103147@lists.php.net to get a copy of this message | ||
Note that you cannot change visibility in a child defined in the parent:
class A {
public function f() {}
}
class B extends A {
private function f() {}
}
Produces Fatal error: Access level to B::f() must be public (as in class A) in ...
jfk, visibility != security. Visibility prevents programmers from doing dumb things like:
class A {
private function __construct() {}
final public static &factory() { return new A(); }
}
$x = new A();
The use of "protected" as an identifier is unfortunate tradition as it really means
"only me and my decedents" (and in the odd case of PHP my ancestors too).
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