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<?php class Singleton{ private static $instance; private function __construct(){} public static function instance() { if (is_null(self::$instance)){ self::$instance = new static; } return self::$instance; } } $obj1 = Singleton::instance(); $obj2 = Singleton::instance(); var_dump(spl_object_hash($obj1), spl_object_hash($obj2));
Output for git.master, git.master_jit, rfc.property-hooks
string(32) "00000000000000010000000000000000" string(32) "00000000000000010000000000000000"

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