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<?php abstract class Singleton { protected function __construct() {} protected function __clone() {} public static function getInstance() { static $instance = null; if (!$instance) { $instance = new static; } return $instance; } } class B extends Singleton { public $var = 2; } class F extends Singleton { public $var = 6; } var_dump(B::getInstance()); var_dump(F::getInstance());
Output for git.master, git.master_jit, rfc.property-hooks
object(B)#1 (1) { ["var"]=> int(2) } object(B)#1 (1) { ["var"]=> int(2) }

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