PHP ZooKeeper Extension

This extension uses libzookeeper library to provide API for communicating with ZooKeeper service.

ZooKeeper is an Apache project that enables centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services.

Requirements

• ZooKeeper C Binding (>= 3.4)
• PHP (>= 7.0)

Install

1.Compile ZooKeeper C Binding

$ ./configure --prefix=/path/to/zookeeper-c-binding
$ make
$ sudo make install

As of ZooKeeper 3.5.0, after unpacking source tarball, the following command should be executed before above-metioned steps:

$ autoreconf -if

As of ZooKeeper 3.5.9, the following command should be executed before autoreconf -if:

$ ant compile_jute

As of ZooKeeper 3.6.0, ant will fail because of missing build.xml. That file and two other files can be found in source tarball of 3.5.9:

$ cd apache-zookeeper-3.5.9
$ cp build.xml ivy* ../apache-zookeeper-3.6.2

2.Compile PHP ZooKeeper Extension

$ phpize
$ ./configure --with-libzookeeper-dir=/path/to/zookeeper-c-binding
$ make
$ sudo make install

Examples

<?php
$zc = new Zookeeper();
$zc->connect('localhost:2181');
var_dump($zc->get('/zookeeper'));
?>

Working with other extensions

1.Swoole

Swoole\Async::set([
    'enable_signalfd' => false, // See: https://github.com/swoole/swoole-src/issues/302
]);

$zk = new Zookeeper('localhost:2181');

Swoole\Process::signal(SIGTERM, function() {
        echo "TERM" . PHP_EOL;
        Swoole\Event::exit();
    });
Swoole\Event::wait();

For Developers

• Install EditorConfig to your IDE.

Branches

• master: Main branch.
• 0.5.x: The last branch which still supports PHP 5.x.

Resources

• Document
• PECL Page
• Zookeeper
• PHP Zookeeper Recipes
• PHP Zookeeper Admin