The document discusses using WordPress and PHP tools like Composer, Symfony, and Doctrine to build an internationalized New York Times site. Key technologies mentioned include WordPress, Docker, AWS services like S3 and RDS, and front-end tools like React, Redux, and GraphQL. The document provides code examples for internationalizing WordPress using Gulp, setting up a PHP project with Composer, and implementing caching with Pimple dependency injection.

1. Internationalizing the
(failing) New York
Times
WordCamp U.S.
(Donald J. Trump, President)
December 3, 2016

3. Scott Taylor
• Sr. Software Engineer, Web Frameworks
Formerly Interactive News
Formerly Blogs
The (failing) New York Times
• WordPress Core Developer

7. Why did we use WordPress?
• WordPress is bootstrapped with i18n
• Easy to support l10n by adding translation files
• Easy to separate languages using multisite
• For new products, helpful to be able to control the
front-end and the back-end
• Gulp plugins make it easy to generate PO/MO files

8. Gulp is a streaming
build system
• Tasks are written in code
instead of config (cough:
Grunt)
• gulp.pipe makes it easy to
chain tasks
const po = new PO();
po.items = items;
po.save(file);
gulp.src(file)
.pipe(gettext())
.pipe(gulp.dest(dest))

9. Docker is the world’s leading software containerization
platform

10. Open-source system for automating deployment, scaling,
and management of containerized applications.

11. SNS
Amazon Simple Notification Service (Amazon SNS) is a
fast, flexible, fully managed push notification service
that lets you send individual messages or to fan-out
messages to large numbers of recipients

12. S3
Amazon Simple Storage Service (Amazon S3) is object
storage with a simple web service interface to store
and retrieve any amount of data from anywhere on the
web.

13. RDS
Amazon Relational Database Service (Amazon RDS)
makes it easy to set up, operate, and scale a relational
database in the cloud.

14. ElastiCache
Amazon ElastiCache is a web service that makes it easy
to deploy, operate, and scale an in-memory data store
or cache in the cloud.

16. What is a PHP
project?

17. gulp
node_modules
vendor
wordpress/
wp-content
index.php
wp-config.php
.babelrc
.eslintrc.json
Dockerfile
gulpfile.babel.js
composer.json
composer.lock
package.json
yarn.lock

18. <?php
require_once( __DIR__ . '/wp-config.php' );
wp();
do_action( 'template_redirect' );
if ( 'HEAD' === $app['request']->getMethod() &&
apply_filters( 'exit_on_http_head', true ) ) {
exit();
}
if ( is_robots() ) {
do_action( 'do_robots' );
} elseif ( is_feed() ) {
do_feed();
} else {
do_action( 'nyt_template_render', $app );
}

19. Composer
Package
Management for
PHP

20. "prefer-dist": true,
"sort-packages": true
},
repositories": [
{
"type":"composer",
"url":"https://wpackagist.org"
}
],
"require": {
"aws/aws-sdk-php": "^3.19",
"doctrine/orm": "^2.5",
"guzzlehttp/guzzle": "^6.2",
"monolog/monolog": "^1.21",
"mustache/mustache": "^2.11",
"pimple/pimple": "^3.0",
"symfony/asset": "^3.1",
"symfony/http-foundation": "^3.1",
"symfony/validator": "^3.1",
"wpackagist-plugin/akismet": "^3.2",
"wpackagist-plugin/amp": "^0.3.3",
"wpackagist-plugin/debug-bar": "^0.8.4",
"wpackagist-plugin/debug-bar-console": "^0.3.0",
"wpackagist-plugin/socialflow": "^2.7"
},
"prefer-stable": true,
"autoload": {
"psr-4": {
"NYT" : "lib/php",
"NYTTheme": "wp-content/themes/shell/php",
"NYTBylines" : "wp-content/plugins/nyt-wp-bylines/php",
"NYTMedia" : "wp-content/plugins/nyt-wp-media/php"
}

21. // all Composer dependencies are available
require( __SRC__ . '/vendor/autoload.php' );
// Load resource in the DI Container
$app = new NYTApp();
$app->register( new NYTAppProvider() );
$app->register( new NYTCacheProvider() );
$app->register( new NYTDatabaseProvider() );
$app->register( new NYTSymfonyProvider() );
$app->register( new NYTAWSProvider() );
NYTgetApp( $app );

22. Mustache
}
Logic-less templates.

23. {{< admin/layout }}
{{$ content }}
<div class="wrap">
<h1>
{{ title }}
{{# title_link_url }}
<a href="{{ . }}" class="page-title-action">{{ l10n.add_new }}</a>
{{/ title_link_url }}
{{{ search }}}
</h1>
{{# message }}
<div id="message" class="updated notice is-dismissible">
<p>{{{ . }}}</p>
</div>
{{/ message }}
<form id="posts-filter" method="get">
{{{ list_table_views }}}
{{{ list_table_display }}}
<div id="ajax-response"></div>
{{{ find_posts_div }}}
</form>
</div>
{{/ content }}
{{/ admin/layout }}

24. Guzzle
Guzzle is a PHP HTTP client that makes it easy to send
HTTP requests and trivial to integrate with web services.

25. Symfony
Best-in-class PHP
Components

26. HttpFoundation
The component defines
an object-oriented layer
for the HTTP
specification.

27. Doctrine
• Around since 2006 with very stable, high-quality
codebase.
• Extremely flexible and powerful object-mapping and
query features.
• Support for both high-level and low-level database
programming for all use-cases.
• Large Community and integrations with many different
frameworks (Symfony, Zend Framework, CodeIgniter,
Flow, Lithium, etc)

28. Pimple
A Simple PHP Dependency Injection Container

29. $app['doctrine.connection'] = function ( $app ) {
return new Connection(
[
'host' => $app['db.host'],
'user' => $app['db.user'],
'password' => $app['db.password'],
],
$app['doctrine.nyt.driver'],
$app['doctrine.config']
);
};
$app['db'] = function ( $app ) {
$conn = $app['doctrine.connection'];
return EntityManager::create(
$conn,
$app['doctrine.config'],
$conn->getEventManager()
);
};

30. <?php
namespace NYTCache;
use NYTApp;
class ObjectCache implements WPCacheInterface {
public function __construct( App $app ) {
$this->memcached = $app['memcached'];
$this->cache = $app['cache.chain'];
$this->arrayCache = $app['cache.array'];
$this->tablePrefix = $app['table_prefix'];
$this->globalPrefix = is_multisite() ? '' : $this->tablePrefix;
$this->sitePrefix = ( is_multisite() ?
$app['blog_id'] :
$this->tablePrefix ) . ':';
}
}

31. <?php
namespace NYTCache;
interface WPCacheInterface {
public function key( $key, string $group = 'default' );
public function get( $id, string $group = 'default' );
public function set( $id, $data, string $group = 'default', int $expire = 0 );
public function add( $id, $data, string $group = 'default', int $expire = 0 );
public function replace( $id, $data, string $group = 'default', int $expire = 0 );
public function delete( $id, string $group = 'default' );
public function incr( $id, int $n = 1, string $group = 'default' );
public function decr( $id, int $n = 1, string $group = 'default' );
public function flush();
public function close();
public function switch_to_blog( int $blog_id );
public function add_global_groups( $groups );
public function add_non_persistent_groups( $groups );
}

32. Silex
A PHP microframework for
PHP. It is built on the
shoulders of Symfony and
Pimple and also inspired by
sinatra.

33. require_once('vendor/autoload.php');
$app = new SilexApplication();
$app->get('/hello/{name}', function($name) use ($app) {
return 'Hello ' . $app->escape($name);
});
$app->run();

34. Hack / HHVM
Hack is a programming language for HHVM, both from
Facebook.

35. Features of Hack
• Backwards compatibility with PHP
• Type annotations catch bugs before runtime.
• AsyncIO
• Collections

36. What are Collections?
$a = Vector {'a', 'b', 'c'};
$b = Map {
'a' => 888,
'b' => 23,
'f' => 0,
};
$c = Set {'A', 'B', 'C'};
Ordered sequence of values
Sequence of values keyed to string or int values:
Ordered collection of unique values (string or int)

37. What are Shapes?
type Taco = shape(
'id' => string,
'url' => string,
'filling' => string
);
$taco = shape(
'id' => '573065673A34Y',
'url' => 'http://tacos.com',
'filling' => 'carnitas'
);
function foo(Taco $taco): void {
echo $taco['filling'];
// ...
}

38. The scope for errors is
significantly reduced.

39. Is WordPress a
PHP project?

40. JavaScript
A brave new world

41. Yarn
https://yarnpkg.com/
Improved package manager
for JavaScript, from Facebook
Install:
brew install yarn
Examples:
yarn add react
yarn install
yarn upgrade
https://code.facebook.com/posts/1840075619545360

42. Flow
A Static Type Checker for JavaScript

43. React
A JavaScript library for building user interfaces

44. Redux is a predictable state container for JavaScript apps.

45. Immutable collections for JavaScript

46. Relay
A JavaScript framework for building data-driven React
applications

47. GraphQL
A query language for your API

48. Atom is a text editor that's modern, approachable, yet
hackable to the core—a tool you can customize to do
anything but also use productively without ever
touching a config file.

49. Isomorphic Apps

50. http://nerds.airbnb.com/isomorphic-javascript-future-web-apps/

51. http://nerds.airbnb.com/isomorphic-javascript-future-web-apps/

52. A toolkit that
encapsulates and
manages the
configuration for
isomorphic web apps

53. // @flow
import React from 'react';
import styles from './Loading.scss';
const Loading = () => (
<p className={styles.loading}>
Loading…
</p>
);
export default Loading;