#29689 [Asn->Csd]: default value of protected member overrides default value of private

ID: 29689 Updated by: stas@php.net Reported By: php dot net at benjamin dot schulz dot name -Status: Assigned +Status: Closed Bug Type: Zend Engine 2 problem Operating System: * PHP Version: 5CVS-2005-04-19 Assigned To: andi New Comment: This bug has been fixed in CVS. 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. fixed it Previous Comments: ------------------------------------------------------------------------ [2005-05-17 16:10:19] stas@php.net No, I think it should output foo, baz, baz. Private property is to behave for external functions as if it did not exist at all. However, protected property is shared by the whole inheritance chain, so redefining it means redefining it everywhere. ------------------------------------------------------------------------ [2005-04-19 16:19:11] sniper@php.net <?php class foo { private $foo = 'foo'; function printFoo1() { echo __CLASS__, ': ', $this->foo, "\n"; } } class bar extends foo { protected $foo = 'bar'; function printFoo2() { echo __CLASS__, ': ', $this->foo, "\n"; } } class baz extends bar { protected $foo = 'baz'; function printFoo3() { echo __CLASS__, ': ', $this->foo, "\n"; } } $bar = new baz; $bar->printFoo1(); $bar->printFoo2(); $bar->printFoo3(); ?> Outputs: foo: baz bar: baz baz: baz When it should output: foo: foo bar: bar baz: baz Right? ------------------------------------------------------------------------ [2004-08-31 19:00:41] php dot net at benjamin dot schulz dot name you don't get the point, the problem is that baz's protected $foo overrides foo's private $foo, that should not happen using parent::foo() is a common technique, and there is a $this because it get's the context of the calling point ------------------------------------------------------------------------ [2004-08-31 18:32:35] tony2001@php.net Please, be more verbose next time if you want to get any help. Your conciseness doesn't help very much. The problem is that you're trying to access class members through $this variable using static methods. As you can understand in this case there is no $this and behavior seems to be undefined (shouldn't there be an error, btw?). ------------------------------------------------------------------------ [2004-08-31 17:48:56] php dot net at benjamin dot schulz dot name yep tony, you're right, and now read the bug report ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/29689 -- Edit this bug report at http://bugs.php.net/?id=29689&edit=1