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<?php abstract class T { static public $instanses; final private function __construct(){ } public static function getInstance() { if (!(static::$instanses instanceof static)) { static::$instanses = new static; } return static::$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 git.master, git.master_jit, rfc.property-hooks
object(A)#1 (0) { } object(B)#2 (0) { } Fatal error: Uncaught Error: Call to private T::__construct() from global scope in /in/dURXZ:37 Stack trace: #0 {main} thrown in /in/dURXZ on line 37
Process exited with code 255.

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