protected $acl = array( array( 'perms' => Zookeeper::PERM_ALL, 'scheme' => 'world', 'id' => 'anyone' ) ); private $isLeader = false; private $znode; public function __construct( $host = '', $watcher_cb = null, $recv_timeout = 10000 ) { parent::__construct( $host, $watcher_cb, $recv_timeout ); } public function register() { if( ! $this->exists( self::CONTAINER ) ) { $this->create( self::CONTAINER, null, $this->acl ); } $this->znode = $this->create( self::CONTAINER . '/w-', null, $this->acl, Zookeeper::EPHEMERAL | Zookeeper::SEQUENCE ); $this->znode = str_replace( self::CONTAINER .'/', '', $this->znode ); Example 3 Multiple workers with automatic leader election # console 1 $ php example_worker.php I'm registred as: w-0000000001 Nobody here, I'm the leader Leading # console 2 $ php example_worker.php I'm registred as: w-0000000002 I'm watching w-0000000001 Working # console 3 $ php example_worker.php I'm registred as: w-0000000003 I'm watching w-0000000002 Working