Integrating Node.js with PHP
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The document discusses integrating Node.js with PHP by sharing session data stored in Memcached or Redis. It provides examples of using a Memcached session handler in PHP that serializes session data to JSON, and an example Node.js app that retrieves session data from Memcached to identify users. While Node.js enables real-time features, the document argues that PHP still has advantages for many use cases and that the right tool should be chosen for the job.
![Quick example... (PHP)
// create connection to memcached
$memcached = new Memcached();
$memcached->addServer('localhost', 11211);
// register handler (PHP 5.3 compatible)
$handler = new LboySessionSaveHandler($memcached);
session_set_save_handler(
array($handler, 'open'),
array($handler, 'close'),
array($handler, 'read'),
array($handler, 'write'),
array($handler, 'destroy'),
array($handler, 'gc')
);
register_shutdown_function('session_write_close');
session_start();
// start using the session
$_SESSION['serialisation'] = 'this should be in json';](https://image.slidesharecdn.com/integratingnode-jswithphp-march20131-130325150001-phpapp02/85/Integrating-Node-js-with-PHP-21-320.jpg)
Integrating Node.js with PHP
- 1. Integrating Node.js with PHP Lee Boynton PHPHants March 2013 Meetup
- 2. So... WTF is Node.js?
- 5. ...one process serves multiple clients
- 6. Apache + mod_php Clients Webserver (Example borrowed from Marc Gear's excellent server side scripting smack down)
- 7. nginx + php-fpm Still pretty similar, there is a pool of available PHP processes
- 8. Node.js Clients Webserver
- 9. A simple Node.js webserver var http = require('http'); http.createServer(function (req, res) { res.writeHead(200, {'Content-Type': 'text/plain'}); res.end('Hello Worldn'); }).listen(1337, '127.0.0.1'); console.log('Server running at http://127. 0.0.1:1337/');
- 10. Why should I use Node.js then?
- 11. #1 Reason l33tness
- 12. Use same language on the frontend and backend!
- 13. Websockets!!!!
- 14. Websockets Persistent connection to server via web browser Low latency Bi-directional Much better than XHR long polling (comet)
- 15. The possibilities... Games News feeds Chat Real-time applications
- 16. Awesome! Let's ditch PHP! Or use the right tool for the right job...
- 17. Reasons to use PHP still PHP works Familiarity, maturity Existing code in PHP Node still in its infancy (created in 2009) Not as many frameworks, libraries May have to write more code for some basic things APIs may change, not version 1.0 yet
- 18. Oh yeah, the integrating part... Memcache/redis/ something else Session data Session data PHP Node
- 19. However... Sessions are serialized by PHP: not|a:2:{i:0;s:4:"easy";i:1;a:1:{s:2:"to";s:5:"parse";}} Easier to parse JSON in Node.js: {"this": {"is": "easier"}}
- 20. Use my session save handler... On Packagist: lboynton/memcached-json- session-save-handler Or msgpack: https://github. com/msgpack/msgpack-php ini_set('session.serialize_handler', 'msgpack')
- 21. Quick example... (PHP) // create connection to memcached $memcached = new Memcached(); $memcached->addServer('localhost', 11211); // register handler (PHP 5.3 compatible) $handler = new LboySessionSaveHandler($memcached); session_set_save_handler( array($handler, 'open'), array($handler, 'close'), array($handler, 'read'), array($handler, 'write'), array($handler, 'destroy'), array($handler, 'gc') ); register_shutdown_function('session_write_close'); session_start(); // start using the session $_SESSION['serialisation'] = 'this should be in json';
- 22. Quick example... (Node.js) 1. Get session ID from cookie 2. Get session data out of memcached 3. Use session data to identify client and send relevant info to their browser See demo app...
- 23. Conclusion... Using Node is fun... Good way to add real-time functionality to existing website Can be used for much more
- 24. Links http://nodejs.org/ https://npmjs.org/ http://socket.io/ https://packagist. org/packages/lboynton/memcached-json- session-save-handler https://github.com/msgpack/msgpack-php https://github.com/msgpack/msgpack-node