GitHub - php-zookeeper/php-zookeeper: A PHP extension for interfacing with Apache ZooKeeper

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)
- PHP official supported versions
Session extension (install with --enable-session)

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:

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

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

As of ZooKeeper 3.7.0, after unpacking source tarball, first execute the following command with Java 8 to build jute files:

Then navigate to the C client directory and generate the configure file:

$ cd zookeeper-client/zookeeper-client-c
$ autoreconf -if

After that, you can proceed with the standard build steps mentioned above.

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();