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<?php class T extends Closure { } new T(); die; $t = function(){ var_dump($this); var_dump(get_class($this)); }; $t();die; abstract class T { static public $instanses; final private function __construct(){ } public static function getInstance() { var_dump(static::$instanses); if (!(static::$instanses instanceof static)) { static::$instanses = new static; } var_dump(static::$instanses); return static::$instanses; } } class A extends T { static public $instanses; } class B extends A { static public $instanses; } $t = A::getInstance(); var_dump($t); $t1 = B::getInstance(); var_dump($t1); new B(); ?>
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.29, 5.6.8 - 5.6.13
Fatal error: Class T may not inherit from final class (Closure) in /in/kDqlB on line 5
Process exited with code 255.
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185.59 ms | 1395 KiB | 62 Q