Bug #53765 [Fbk->NoF]: $this variable doesn't get set using static reference

Edit report at https://bugs.php.net/bug.php?id=53765&edit=1 ID: 53765 Updated by: php-bugs@lists.php.net Reported by: jon dot skarpeteig at gmail dot com Summary: $this variable doesn't get set using static reference -Status: Feedback +Status: No Feedback Type: Bug Package: Scripting Engine problem PHP Version: 5.3.5 New Comment: No feedback was provided. The bug is being suspended because we assume that you are no longer experiencing the problem. If this is not the case and you are able to provide the information that was requested earlier, please do so and change the status of the bug back to "Open". Thank you. Previous Comments: ------------------------------------------------------------------------ [2011-01-17 18:23:28] cataphract@php.net I can't reproduce with this: <?php abstract class singleton { protected static $instance = null; final public static function getInstance() { if(null !== static::$instance) return static::$instance; static::$instance = new static(); return static::$instance; } } class myclass extends singleton { protected $var='foo'; public function bar() { echo $this->var; } } $myclass = myclass::getInstance(); $myclass->bar(); echoes "foo". Is this the correct script? ------------------------------------------------------------------------ [2011-01-17 11:56:06] jon dot skarpeteig at gmail dot com * correction: abstract class singleton { protected static $instance = null; final public static function getInstance() { if(null !== static::$instance){ return static::$instance; } static::$instance = new static(); return static::$instance; } } and: var_dump($this); - not echo ------------------------------------------------------------------------ [2011-01-17 11:51:16] jon dot skarpeteig at gmail dot com Description: ------------ The test script output: Notice: Undefined variable: this Instead $this is referenced as $instance Attempting to do $this = $instance; returns: Fatal error: Cannot re-assign $this Test script: --------------- abstract class singleton { final public static function getInstance() { if(null !== static::$instance){ return static::$instance; } static::$instance = new static(); return static::$instance; } } class myclass extends singleton { protected $var='foo'; public function bar() { echo $this->var; } } $myclass = myclass::getInstance(); $myclass->bar(); Expected result: ---------------- I expected $this to hold the same value as $instance Actual result: -------------- Notice: Undefined variable: this ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=53765&edit=1