[presentations] master: Mex talk
[email protected] (Rasmus Lerdorf) Sun, 27 Nov 2022 00:23:31 +0000
| Newsgroups | php.pres |
|---|---|
| Message-ID | <[email protected]> |
Author: Rasmus Lerdorf (rlerdorf)
Date: 2022-11-26T16:12:18-08:00
Commit: https://github.com/php/presentations/commit/ff21f5ab86a2fc6ce5cfa88fee043027233a0423
Raw diff: https://github.com/php/presentations/commit/ff21f5ab86a2fc6ce5cfa88fee043027233a0423.diff
Mex talk
Changed paths:
A etsymex22.html
A etsymex22.xml
A slides/intro/etsyphp22.xml
A slides/intro/ffi_2022.xml
A slides/intro/php80_2022.xml
A slides/intro/php82_2022.xml
A slides/intro/wp2022.js
A slides/intro/wp2022.xml
M slides/intro/etsyframework.xml
M slides/intro/php81_2021.xml
Diff:
diff --git a/etsymex22.html b/etsymex22.html
new file mode 100644
index 00000000..2fd33d6e
--- /dev/null
+++ b/etsymex22.html
@@ -0,0 +1,1058 @@
+<!doctype html>
+<html lang="en">
+
+ <head>
+ <meta charset="utf-8">
+
+ <title>Modern PHP</title>
+
+ <meta name="description" content="Modern PHP">
+ <meta name="author" content="Rasmus Lerdorf">
+
+ <meta name="apple-mobile-web-app-capable" content="yes" />
+ <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
+
+ <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">
+
+ <link rel="stylesheet" href="/reveal.js/css/reveal.css">
+ <link rel="stylesheet" href="/reveal.js/css/theme/white.css" id="theme">
+
+ <!-- Printing and PDF exports -->
+ <script>
+ var link = document.createElement( 'link' );
+ link.rel = 'stylesheet';
+ link.type = 'text/css';
+ link.href = window.location.search.match( /print-pdf/gi ) ? 'css/print/pdf.css' : 'css/print/paper.css';
+ document.getElementsByTagName( 'head' )[0].appendChild( link );
+ </script>
+
+ <!-- For syntax highlighting - note that these are not the generic highlight.js theme files - see https://github.com/nwinkler/reveal-highlight-themes -->
+ <link rel="stylesheet" href="/styles/xcode.css">
+
+ <!-- Override a few styles -->
+ <style>
+ /*
+ Not actually sure why this block isn't being picked up from the syntax highlight css
+ If you change the syntax highlight theme, copy the first block here
+ */
+ .reveal pre {
+ width: 100%;
+ }
+
+ .reveal pre code {
+ display: block;
+ max-height: 600px;
+ overflow-x: auto;
+ padding: 0.5em;
+ line-height: 125%;
+ background: #fff;
+ color: black;
+ -webkit-text-size-adjust: none;
+ }
+
+ .reveal section img {
+ box-shadow: none;
+ border: none;
+ }
+
+ .reveal code.shell {
+ display: block;
+ overflow-x: auto;
+ padding: 0.5em;
+ background: #000;
+ color: #ddd;
+ line-height: 125%;
+ -webkit-text-size-adjust: none;
+ }
+
+ .reveal code.result {
+ display: block;
+ overflow-x: auto;
+ padding: 0.5em;
+ background: #ddd;
+ color: #000;
+ line-height: 125%;
+ -webkit-text-size-adjust: none;
+ }
+
+ /* Left-align h3 and h4 if they are p elements */
+ h3.p {
+ text-align: left;
+ }
+ h4.p {
+ text-align: left;
+ }
+ /* and left-aligned but slightly indented bullet lists */
+ .reveal ul {
+ display: block;
+ margin: 0 0 1em 3em;
+ }
+ /* Example titles */
+ p.example {
+ text-align: left;
+ margin: 0 0 -0.5em 1em;
+ font-weight: bold;
+ }
+ /* Example output style */
+ pre.output {
+ display: block;
+ overflow-x: auto;
+ padding: 0.5em;
+ background: #ddd;
+ color: black;
+ line-height: 200%;
+ -webkit-text-size-adjust: none;
+ }
+
+ </style>
+
+ <!-- Printing and PDF exports -->
+ <script>
+ var link = document.createElement( 'link' );
+ link.rel = 'stylesheet';
+ link.type = 'text/css';
+ link.href = window.location.search.match( /print-pdf/gi ) ? '/reveal.js/css/print/pdf.css' : '/reveal.js/css/print/paper.css';
+ document.getElementsByTagName( 'head' )[0].appendChild( link );
+ </script>
+
+ <!-- Needed for charts to work. Fall back to network if no local copy -->
+ <script type='text/javascript' src='/jquery.min.js'></script>
+ <script>window.jQuery || document.write('<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js">\x3C/script>')</script>
+ <script src="/highcharts.js"></script>
+ <script>window.Highcharts || document.write('<script src="http://code.highcharts.com/highcharts.js">\x3C/script>')</script>
+
+ <!--[if lt IE 9]>
+ <script src="/reveal.js/lib/js/html5shiv.js"></script>
+ <![endif]-->
+ </head>
+
+ <body>
+
+ <div class="reveal">
+
+ <!-- Any section element inside of this container is displayed as a slide -->
+ <div class="slides">
+ <section>
+ <h1>Modern PHP</h1>
+ <h3></h3>
+ <h3>Mexico City - in person 🎉</h3>
+ <h3>Dec.7, 2022</h3>
+ <a href="http://talks.php.net/etsymex22">http://talks.php.net/etsymex22</a><br><br>
+ <p>Rasmus Lerdorf<br>
+ <small><a href="http://twitter.com/@rasmus">@rasmus</a></small>
+ </p>
+ <aside class="notes">
+ </aside>
+ </section>
+ <section>
+ <section id="etsyphp">
+ <img src="/presentations/slides/intro/etsy_arch.png" align="left" width="265" height="581">
+ <p class="p" style="font-size:2em;text-align:center;">PHP at Etsy</p>
+ <ul>
+ <li style="font-size: 1.2em;margin-left: 4em;list-style-type: none;">Linux, Apache, MySQL, PHP</li>
+ <li style="font-size: 1.2em;margin-left: 4em;list-style-type: none;">Memcache, Gearman, StatsD, Vitess, Redis, Kafka, Varnish</li>
+ <li style="font-size: 1.2em;margin-left: 4em;list-style-type: none;">GCP, Terraform</li>
+ </ul>
+ <p class="p" style="font-size:2em;text-align:center;">API First!</p>
+<aside class="notes"><br />
+Global, Internal Load Balancer<br />
+Managed Instance Groups<br />
+Many other stacks not shown, like beacons, assets, downloads<br />
+Gearman for longer-running Asynchronous tasks<br />
+Crons for non-request triggered<br />
+</aside>
+ </section> </section>
+ <section>
+ <section id="etsyfw">
+ <p class="p" style="font-size:2em;text-align:center;">Framework?</p>
+ <p class="p" style="font-size:1.8em;text-align:center;">We built our own over the years</p>
+ <p class="p" style="font-size:1.4em;text-align:center;">(bad idea, don't do that)</p>
+<aside class="notes"><br />
+Including building our own ORM<br />
+There are many great frameworks out there<br />
+Laravel, Symfony<br />
+</aside>
+ </section>
+ <section id="etsyfw1" >
+ <p class="p" style="font-size:2em;text-align:left;">Request Routing</p>
+ <pre><code data-trim style="font-size:1em;" >https://etsy.com/awesome/123</code></pre>
+ <p class="p" style="font-size:1.2em;text-align:left;">.htaccess Apache rewrite rule</p>
+ <pre><code data-trim style="font-size:1em;" >RewriteRule ^awesome/(\d+)$ /awesome.php?id=$1 [L,NC,QSA]</code></pre>
+<aside class="notes"><br />
+request routing is a combination of mod_rewrite and PHP bridge code<br />
+<br />
+L last<br />
+NC case-insensitive<br />
+QSA append query string<br />
+<br />
+We have tools that compile these routes for us<br />
+</aside>
+ </section>
+ <section id="etsyfw2" >
+ <p class="p" style="font-size:1.4em;text-align:left;">awesome.php</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >require 'bootstrap.php';
+$request = HTTP_Request::getInstance();
+$response = HTTP_Response::getInstance();
+$controller = new Awesome_Controller();
+$controller->doCoolThings($request, $response);</code></pre>
+<aside class="notes"><br />
+Very little code here, just routing us to the controller<br />
+</aside>
+ </section>
+ <section id="etsyfw3" >
+ <p class="p" style="font-size:1.4em;text-align:left;">Code/Awesome/Controller.php</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >class Awesome_Controller extends Controller_Base {
+ public function doCoolThings($request, $response) {
+ $id = $request->getGet('id', 0);
+ if (!$id) {
+ $response->redirect_error(Constants::ERROR_NOT_FOUND);
+ return;
+ }
+ $thing = EtsyORM::getFinder('Thing')->findById($id);
+ $stuff = Api::endpoint('AwesomeStuff', [$thing->id, 'max'=>10]);
+ $this->renderViewTree(New Awesome_View($thing, $stuff));
+ }
+}</code></pre>
+<aside class="notes"><br />
+The controller can make direct DB calls<br />
+And fan out to the API<br />
+</aside>
+ </section>
+ <section id="etsyfw4" >
+ <p class="p" style="font-size:1.4em;text-align:left;">Awesome_View</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >class Awesome_View implements Neu_View {
+ const TEMPLATE = "/templates/awesome/main.mustache";
+ use Neu_Traits_DefaultView;
+
+ public function __construct(AwesomeThing $thing, array $stuff) {
+ $this->thing = $thing;
+ $this->stuff = $stuff;
+ }
+ public function getCssFiles(): array {
+ return [ '/awesome/main.scss' ];
+ }
+ public function getTemplateData(): array {
+ return [ 'thing_id' => $this->thing->id,
+ 'thing_name' => $this->thing->name,
+ 'stuff' => $this->stuff ];
+ }
+}</code></pre>
+ </section>
+ <section id="etsyfw5" >
+ <p class="p" style="font-size:1.4em;text-align:left;">templates/awesome/main.mustache</p>
+ <pre><code class="mustache" data-trim style="font-size:1em;" ><div>
+ <p>{{thing_name}} ({{thing_id}})</p>
+ <ul>
+ {{#stuff}}
+ <li>{{id}} {{description}}</li>
+ {{/stuff}}
+ </ul>
+</div></code></pre>
+ </section> </section>
+ <section>
+ <section id="phan">
+ <h1 style="text-align:center;">Static Analysis</h1>
+<br/>
+<br/>
+ <div align="center" style="font-size: 2em; color: ; text-align: center; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/phan/phan" target="">github.com/phan/phan</a></div>
+ </section>
+ <section id="phan0" >
+ <p class="p" style="font-size:1.5em;text-align:left;">Install with composer</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1em;" >$ composer require --dev phan/phan</code></pre>
+ <p class="p" style="font-size:1.5em;text-align:left;">Create .phan/config.php</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1em;" >return [
+ 'target_php_version' => '8.0',
+ 'directory_list' => [ 'src/' ],
+ "exclude_analysis_directory_list" => [ 'vendor/' ],
+];</code></pre>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1em;" >$ ./vendor/bin/phan</code></pre>
+ </section>
+ <section id="phan2" >
+ <p class="p" style="font-size:1.5em;text-align:center;">Phan in Browser</p>
+ <div align="center" style="font-size: 2em; color: ; text-align: center; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://phan.github.io/demo/" target="">phan.github.io/demo/</a></div>
+ </section>
+ <section id="phan3" >
+ <p class="p" style="font-size:1.5em;text-align:center;">Dependency Graph Plugin</p>
+ <div align="center" style="font-size: 2em; color: ; text-align: center; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="http://pdep.lerdorf.com/?mode=class&node=\Grav\Common\File\CompiledFile&d=1" target="">pdep example</a></div>
+<aside class="notes"><br />
+Show what depends on the \Grav\Common\File\CompiledFile trait<br />
+</aside>
+ </section>
+ <section id="phan4" >
+ <p class="p" style="font-size:2em;text-align:left;">Daemon mode</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1em;" >$ phan --daemonize-tcp-port default &
+[1] 28610
+Listening for Phan analysis requests at tcp://127.0.0.1:4846
+Awaiting analysis requests for directory '/home/rasmus/phan_demo'
+
+$ vi src/script.php</code></pre>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1em;" >$ phan_client -l src/script.php
+Phan error: TypeError: PhanTypeMismatchArgument: Argument 1 (union) is array{0:1} but \C::fn() takes int|string defined at src/script.php:8 in src/script.php on line 14
+Phan error: TypeError: PhanTypeMismatchArgument: Argument 3 (shaped) is array{max:10} but \C::fn() takes array{mode:string,max:int} defined at src/script.php:8 in src/script.php on line 16</code></pre>
+<aside class="notes"><br />
+You can run keep the entire graph in memory using daemon mode<br />
+which allows editor integration...<br />
+</aside>
+ </section>
+ <section id="phan5" >
+ <p class="p" style="font-size:1.5em;text-align:left;">vim integration</p>
+ <div id="container">
+ <video id='video' controls="controls" preload='none' onclick='this.paused ? this.play() : this.pause();'
+ width="1848" >
+ <source id='mp4' src="presentations/slides/intro/phanvid.mp4" type='video/mp4'/>
+ <p>Your user agent does not support the HTML5 Video element.</p>
+ </video>
+ </div> </section> </section>
+ <section>
+ <section id="phpspy">
+ <h1 style="text-align:center;">phpspy</h1>
+ <p class="p" style="font-size:1.1em;text-align:center;">Low-overhead sampling profiler</p>
+ <div align="center" style="font-size: 1em; color: ; text-align: center; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/adsr/phpspy" target="">https://github.com/adsr/phpspy</a></div>
+ </section>
+ <section id="spy1" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Sample frequency in nanoseconds (or Hz)</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:0.9em;" >$ phpspy -s 200000000 -- php -r 'sleep(1);'
+0 sleep <internal>:-1
+1 <main> <internal>:-1
+
+0 sleep <internal>:-1
+1 <main> <internal>:-1
+
+0 sleep <internal>:-1
+1 <main> <internal>:-1
+
+0 sleep <internal>:-1
+1 <main> <internal>:-1
+
+0 sleep <internal>:-1
+1 <main> <internal>:-1
+
+process_vm_readv: No such process</code></pre>
+ </section>
+ <section id="spy2" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Attach to a running process</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:0.9em;" >$ sudo phpspy -r -p $(pgrep -n php-fpm)
+
+0 wp_installing /var/www/wordpress/wp-includes/load.php:944
+1 wp_load_alloptions /var/www/wordpress/wp-includes/option.php:189
+2 get_option /var/www/wordpress/wp-includes/option.php:90
+3 create_initial_taxonomies /var/www/wordpress/wp-includes/taxonomy.php:43
+4 WP_Hook::apply_filters /var/www/wordpress/wp-includes/class-wp-hook.php:286
+5 WP_Hook::do_action /var/www/wordpress/wp-includes/class-wp-hook.php:310
+6 do_action /var/www/wordpress/wp-includes/plugin.php:453
+7 <main> /var/www/wordpress/wp-settings.php:450
+8 <main> /var/www/wordpress/wp-config.php:89
+9 <main> /var/www/wordpress/wp-load.php:37
+10 <main> /var/www/wordpress/wp-blog-header.php:13
+11 <main> /var/www/wordpress/index.php:17
+# 1537119612.459615 /index.php p=1 /var/www/wordpress/index.php -
+
+0 mysqli_query <internal>:-1
+1 wpdb::_do_query /var/www/wordpress/wp-includes/wp-db.php:1924
+2 wpdb::query /var/www/wordpress/wp-includes/wp-db.php:1813
+3 wpdb::get_results /var/www/wordpress/wp-includes/wp-db.php:2488
+4 _prime_comment_caches /var/www/wordpress/wp-includes/comment.php:2871
+5 WP_Comment_Query::get_comments /var/www/wordpress/wp-includes/class-wp-comment-query.php:427
+6 WP_Comment_Query::query /var/www/wordpress/wp-includes/class-wp-comment-query.php:346
+7 get_comments /var/www/wordpress/wp-includes/comment.php:226
+8 WP_Widget_Recent_Comments::widget /var/www/wordpress/wp-includes/widgets/class-wp-widget-recent-comments.php:99
+9 WP_Widget::display_callback /var/www/wordpress/wp-includes/class-wp-widget.php:372
+10 dynamic_sidebar /var/www/wordpress/wp-includes/widgets.php:743
+11 <main> /var/www/wordpress/wp-content/themes/twentyfifteen/sidebar.php:41
+12 load_template /var/www/wordpress/wp-includes/template.php:688
+13 locate_template /var/www/wordpress/wp-includes/template.php:647
+14 get_sidebar /var/www/wordpress/wp-includes/general-template.php:110
+15 <main> /var/www/wordpress/wp-content/themes/twentyfifteen/header.php:49
+16 load_template /var/www/wordpress/wp-includes/template.php:688
+17 locate_template /var/www/wordpress/wp-includes/template.php:647
+18 get_header /var/www/wordpress/wp-includes/general-template.php:41
+19 <main> /var/www/wordpress/wp-content/themes/twentyfifteen/single.php:10
+20 <main> /var/www/wordpress/wp-includes/template-loader.php:74
+21 <main> /var/www/wordpress/wp-blog-header.php:19
+22 <main> /var/www/wordpress/index.php:17
+# 1537119612.459615 /index.php p=1 /var/www/wordpress/index.php -</code></pre>
+ </section>
+ <section id="spy3" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Memory usage on stack frames</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:0.9em;" >$ sudo phpspy -m php src/phan.php
+
+0 Phan\Analysis::parseNodeInContext /home/rasmus/phan/src/Phan/Analysis.php:176
+1 Phan\Analysis::parseNodeInContext /home/rasmus/phan/src/Phan/Analysis.php:176
+2 Phan\Analysis::parseNodeInContext /home/rasmus/phan/src/Phan/Analysis.php:176
+3 Phan\Analysis::parseNodeInContext /home/rasmus/phan/src/Phan/Analysis.php:176
+4 Phan\Analysis::parseFile /home/rasmus/phan/src/Phan/Analysis.php:63
+5 Phan\Phan::analyzeFileList /home/rasmus/phan/src/Phan/Phan.php:94
+6 <main> /home/rasmus/phan/src/phan.php:1
+# mem 119159776 123721960
+
+0 ast\parse_code <internal>:-1
+1 Phan\AST\Parser::parseCode /home/rasmus/phan/src/Phan/AST/Parser.php:42
+2 Phan\Analysis::parseFile /home/rasmus/phan/src/Phan/Analysis.php:63
+3 Phan\Phan::analyzeFileList /home/rasmus/phan/src/Phan/Phan.php:94
+4 <main> /home/rasmus/phan/src/phan.php:1
+# mem 82471616 123721960</code></pre>
+ </section>
+ <section id="spytop" >
+ <p class="p" style="font-size:1.1em;text-align:center;">Top-like output mode </p>
+ <img src="/presentations/slides/intro/phpspy_top.gif" align="center" width="772" height="452">
+<aside class="notes"><br />
+sudo ptop<br />
+cd ~/phan<br />
+phan<br />
+</aside>
+ </section>
+ <section id="spy4" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Generate a flame graph</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:0.9em;" >$ phpspy phan > /tmp/output
+$ cat /tmp/output | stackcollapse-phpspy.pl | flamegraph.pl > flame.svg</code></pre>
+ </section>
+ <section id="spy5" >
+ <object data="/presentations/slides/intro/phan.svg" type="image/svg+xml" align="center" width="80%" height="80%">Use a newer browser, please</object>
+ </section> </section>
+ <section>
+ <section id="deploy">
+ <h1 style="text-align:center;">Let's deploy it!</h1>
+ </section>
+ <section id="deploy0" >
+ <p class="p" style="font-size:1.7em;text-align:left;">Atomic</p>
+ <p class="p" style="font-size:1.7em;text-align:left;">No performance hit</p>
+ <ul>
+ <li style="font-size: 1.5em;">No restarts</li>
+ <li style="font-size: 1.5em;">No LB removal</li>
+ <li style="font-size: 1.5em;">No thundering herd</li>
+ <li style="font-size: 1.5em;">Cache reuse</li>
+ </ul>
+ </section>
+ <section id="deploy1" >
+ <p class="p" style="font-size:1em;text-align:left;">Must be able to serve two versions of the site concurrently!</p>
+ <img src="/presentations/slides/intro/atomic_deploy1.png" width="" height="">
+ </section>
+ <section id="deploy2" >
+ <img src="/presentations/slides/intro/atomic_deploy2.png" width="" height="">
+ </section>
+ <section id="deploy3" >
+ <p class="p" style="font-size:1em;text-align:left;">Requests that begin on DocumentRoot A must finish on A</p>
+ </section>
+ <section id="deploy4" >
+ <p class="p" style="font-size:1em;text-align:left;">Set the DocumentRoot to symlink target!</p>
+ <p class="p" style="font-size:1em;text-align:left;">Easy with nginx</p>
+ <pre><code class="ini" data-trim style="font-size:1.1em;" >fastcgi_param DOCUMENT_ROOT $realpath_root</code></pre>
+ <p class="p" style="font-size:1em;text-align:left;">Apache</p>
+ <div align="left" style="font-size: 1.25em; color: ; text-align: left; margin-left: 1em; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/etsy/mod_realdoc" target="">github.com/etsy/mod_realdoc</a></div>
+ </section>
+ <section id="deploy5" >
+ <p class="p" style="font-size:1em;text-align:left;">Avoid hardcoding full paths</p>
+ <p class="p" style="font-size:1em;text-align:left;">Watch your include_path setting</p>
+ <p class="p" style="font-size:1em;text-align:left;">incpath extension can resolve your include_path for you</p>
+ <div align="left" style="font-size: 1.25em; color: ; text-align: left; margin-left: 1em; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/etsy/incpath" target="">https://github.com/etsy/incpath</a></div>
+<aside class="notes"><br />
+some contraints...<br />
+</aside>
+ </section>
+ <section id="deploy6" >
+ <p class="p" style="font-size:1em;text-align:left;">Version all static assets</p>
+ <p class="p" style="font-size:1em;text-align:left;">DB Schema changes need special care</p>
+ </section> </section>
+ <section>
+ <section id="supported">
+ <h2 style="text-align:center;">Version Support</h2>
+ <img src="http://php.net/images/supported-versions.php" align="center" width="" height="">
+<font size="6em">
+<table align="left" width="60%" border="0" style="margin-left: 1em;"><tr>
+ <td bgcolor="#90C090"><span style="font-size: 1em;">Active Support</span>
+ </td> <td ><span style="">Regular releases and security fixes</span>
+ </td></tr>
+<tr>
+ <td bgcolor="#F09030"><span style="font-size: 1em;">Security Fixes</span>
+ </td> <td ><span style="">Only security fixes</span>
+ </td></tr>
+<tr>
+ <td bgcolor="F03030"><span style="font-size: 1em;">End of Life</span>
+ </td> <td ><span style="">No longer supported</span>
+ </td></tr>
+</table></font><br />
+ </section> </section>
+ <section>
+ <section id="wpbench">
+
+<div id="wpbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/wp2022.js"></script>
+ </section> </section>
+ <section>
+ <section id="php80">
+ <h1 style="text-align:center;">PHP 8.0</h1>
+ <p class="p" style="font-size:1.1em;text-align:left;">Named Arguments</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >htmlspecialchars($string, double_encode: false);</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">Constructor Property Promotion</p>
+ <pre><code class="php" data-trim style="font-size:1.1em;" >class User {
+ function __construct(public string $name, private string $pwd = "") { }
+}</code></pre>
+ </section>
+ <section id="php80_1" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Nullsafe Operator with short-circuiting</p>
+ <pre><code class="php" data-trim style="font-size:1.1em;" >$country = $session?->user?->getAddress(geoip())?->country;</code></pre>
+ <p class="p" style="font-size:1em;text-align:left;">Match Expression, Union Types</p>
+ <pre><code class="php" data-trim style="font-size:0.85em;" >function days_in_month(string|int $month, int $year): int {
+ $leap = $year % 400;
+ $leap = !$leap|!($leap%4)&!!($leap%100); // 👀
+
+ return match(is_string($month) ? strtolower(substr($month, 0, 3)) : $month) {
+ 'apr', 4, 'jun', 6, 'sep', 9, 'nov', 11 => 30,
+ 'jan', 1, 'mar', 3, 'may', 5, 'jul', 7, 'aug', 8, 'oct', 10, 'dec', 12 => 31,
+ 'feb', 2 => $leap ? 29 : 28,
+ default => throw new InvalidArgumentException("Invalid month"),
+ };
+}</code></pre>
+ </section>
+ <section id="php80_2" >
+ <p class="p" style="font-size:1em;text-align:left;">weakMap</p>
+ <p class="p" style="font-size:0.8em;text-align:left;"> - Map objects to arbitrary values without preventing GC</p>
+ <p class="p" style="font-size:1em;text-align:left;">Attributes</p>
+ <p class="p" style="font-size:0.8em;text-align:left;"> - Structured metadata</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >function login(int $user_id, #[\SensitiveParameter] string $pwd) { }</code></pre>
+ </section> </section>
+ <section>
+ <section id="php81">
+ <h1 style="text-align:center;">PHP 8.1</h1>
+ </section>
+ <section id="php81_readonly_props" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Readonly properties</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >class Test {
+ public readonly string $prop;
+
+ public function __construct(string $prop) {
+ $this->prop = $prop; // Initialized once in same scope
+ }
+}
+
+$test = new Test("foobar");
+var_dump($test->prop);
+$test->prop = "foobar"; // Error</code></pre>
+ </section>
+ <section id="php81_enums" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Enums</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >enum Suit {
+ case Hearts;
+ case Diamonds;
+ case Clubs;
+ case Spades;
+}
+
+function pick_a_card(Suit $suit) { ... }
+pick_a_card(Suit::Clubs); // ok
+pick_a_card('Spades'); // error</code></pre>
+ </section>
+ <section id="php81_fibers" >
+ <pre><code class="php" data-trim style="font-size:1em;" >use React\EventLoop\LoopInterface;
+use React\Promise\PromiseInterface;
+
+function await(PromiseInterface $promise, LoopInterface $loop): mixed {
+ $fiber = Fiber::this();
+ $promise->done(
+ fn(mixed $value) => $loop->futureTick(fn() => $fiber->resume($value)),
+ fn(Throwable $reason) => $loop->futureTick(fn() => $fiber->throw($reason))
+ );
+
+ return Fiber::suspend();
+}</code></pre>
+ </section>
+ <section id="php81_fibers" >
+ <pre><code class="php" data-trim style="font-size:1em;" >class A {
+ public static function counter() {
+ static $i = 0;
+ return ++$i;
+ }
+}
+class B extends A {}
+
+echo A::counter();
+echo A::counter();
+echo B::counter();
+echo B::counter();
+// PHP 8.0 outputs 1212
+// PHP 8.1 outputs 1234</code></pre>
+ </section>
+ <section id="php81_never" >
+ <pre><code class="php" data-trim style="font-size:1em;" >function redirect(string $uri): never {
+ header('Location: ' . $uri);
+ exit();
+}
+
+redirect('/index.html');
+echo "this will never be executed!";</code></pre>
+ </section>
+ <section id="php81_final" >
+ <pre><code class="php" data-trim style="font-size:1em;" >class Foo {
+ final public const X = "foo";
+}
+
+class Bar extends Foo {
+ public const X = "bar";
+}
+
+// Fatal error: Bar::X cannot override final constant Foo::X</code></pre>
+ </section>
+ <section id="php81_new_init" >
+ <pre><code class="php" data-trim style="font-size:1em;" >class Test {
+ public function __construct(private Logger $logger = new NullLogger) {}
+}
+
+// instead of
+
+class Test {
+ private Logger $logger;
+
+ public function __construct(?Logger $logger = null) {
+ $this->logger = $logger ?? new NullLogger;
+ }
+}</code></pre>
+ </section>
+ <section id="php81_first_class_callable" >
+ <pre><code class="php" data-trim style="font-size:1em;" >$fn = strlen(...);
+$fn = $this->method(...)
+$fn = Foo::method(...);
+
+// instead of
+
+$fn = Closure::fromCallable('strlen');
+$fn = Closure::fromCallable([$this, 'method']);
+$fn = Closure::fromCallable([Foo::class, 'method']);</code></pre>
+ </section>
+ <section id="php81_pure_intersection" >
+ <pre><code class="php" data-trim style="font-size:1em;" >class A {
+ private Traversable&Countable $countableIterator;
+
+ public function setIterator(Traversable&Countable $countableIterator): void {
+ $this->countableIterator = $countableIterator;
+ }
+
+ public function getIterator(): Traversable&Countable {
+ return $this->countableIterator;
+ }
+}</code></pre>
+ </section>
+ <section id="php81_misc" >
+ <ul>
+ <li>Inheritance cache (avoid relinking classes)</li>
+ <li>JIT improvements and add support for ARM64</li>
+ <li>Optimize class name resolution</li>
+ </ul>
+ </section> </section>
+ <section>
+ <section id="php82">
+ <h1 style="text-align:center;">PHP 8.2</h1>
+ </section>
+ <section id="php82_readonly_class" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Readonly Classes</p>
+ <div align="left" style="font-size: 0.75em; color: ; text-align: left; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://wiki.php.net/rfc/readonly_classes" target="">https://wiki.php.net/rfc/readonly_classes</a></div>
+ <pre><code data-trim style="font-size:1em;" >readonly class Test {
+ public function __construct(public string $prop) { }
+}
+$test = new Test("Hi");
+var_dump($test->prop); // Hi
+$test->prop = "foobar"; // Cannot modify readonly property Test::$prop</code></pre>
+ <p class="p" style="font-size:1em;text-align:left;">Prevents dynamic properties</p>
+ <p class="p" style="font-size:1em;text-align:left;">Can't be used with untyped or static properties</p>
+ </section>
+ <section id="php82_dnf" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Disjunctive Normal Form (DNF) Types</p>
+ <div align="left" style="font-size: 0.75em; color: ; text-align: left; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://wiki.php.net/rfc/dnf_types" target="">https://wiki.php.net/rfc/dnf_types</a></div>
+ <pre><code data-trim style="font-size:1em;" >class A { }
+class B extends A { };
+class Foo {
+ public function bar((A&B)|null $entity): A&B {
+ if (!$entity) $entity = new B;
+ return $entity;
+ }
+}
+$c = new Foo;
+$c->bar(new B);</code></pre>
+ <p class="p" style="font-size:0.75em;text-align:left;">8.0 Union Types X|Y</p>
+ <p class="p" style="font-size:0.75em;text-align:left;">8.1 Intersection Types X&Y</p>
+ <p class="p" style="font-size:0.75em;text-align:left;">8.2 DNF Types (X&A)|(Y&B)</p>
+ </section>
+ <section id="php82_nft" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Standalone null, false, and true types</p>
+ <div align="left" style="font-size: 0.75em; color: ; text-align: left; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://wiki.php.net/rfc/null-false-standalone-types" target="">https://wiki.php.net/rfc/null-false-standalone-types</a></div>
+ <div align="left" style="font-size: 0.75em; color: ; text-align: left; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://wiki.php.net/rfc/true-type" target="">https://wiki.php.net/rfc/true-type</a></div>
+ <pre><code data-trim style="font-size:1em;" >class Falsy {
+ public function alwaysFalse(): false { /* ... */ }
+
+ public function alwaysTrue(): true { /* ... */ }
+
+ public function alwaysNull(): null { /* ... */ }
+}</code></pre>
+ </section>
+ <section id="php82_random" >
+ <p class="p" style="font-size:1.1em;text-align:left;">New "Random" extension</p>
+ <div align="left" style="font-size: 0.75em; color: ; text-align: left; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://wiki.php.net/rfc/rng_extension" target="">https://wiki.php.net/rfc/rng_extension</a></div>
+ <div align="left" style="font-size: 0.75em; color: ; text-align: left; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://wiki.php.net/rfc/random_extension_improvement" target="">https://wiki.php.net/rfc/random_extension_improvement</a></div>
+ <pre><code data-trim style="font-size:1em;" >$rng = $is_production
+ ? new Random\Engine\Secure()
+ : new Random\Engine\PCG64(1234);
+
+$randomizer = new Random\Randomizer($rng);
+$randomizer->shuffleString('Testing');</code></pre>
+ <p class="p" style="font-size:0.75em;text-align:left;">Provides multiple RNG engines as opposed to just using Mersenne Twister</p>
+ </section>
+ <section id="php82_trait_constants" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Constants in Traits</p>
+ <div align="left" style="font-size: 0.75em; color: ; text-align: left; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://wiki.php.net/rfc/constants_in_traits" target="">https://wiki.php.net/rfc/constants_in_traits</a></div>
+ <pre><code data-trim style="font-size:1em;" >trait T {
+ public const CONSTANT = 1;
+ public function bar(): int {
+ return self::CONSTANT;
+ }
+}
+
+class C {
+ use T;
+}
+
+var_dump(C::CONSTANT); // 1</code></pre>
+ </section>
+ <section id="php82_sensitive_param" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Sensitive Parameters</p>
+ <pre><code data-trim style="font-size:1em;" >class User {
+ function __construct(string $id, #[\SensitiveParameter] string $pwd) {
+ throw new \Exception("Error");
+ }
+}
+$u = new User('rasmus', 'very-secret');</code></pre>
+ <pre class="output" style="font-size:0.4em;">Fatal error: Uncaught Exception
+Stack trace:
+#0 /home/rasmus/c(7): User->__construct('rasmus', Object(SensitiveParameterValue))
+#1 {main} </pre> </section>
+ <section id="php82_ddprop" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Deprecate dynamic properties</p>
+ <div align="left" style="font-size: 0.75em; color: ; text-align: left; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://wiki.php.net/rfc/deprecate_dynamic_properties" target="">https://wiki.php.net/rfc/deprecate_dynamic_properties</a></div>
+ <pre><code data-trim style="font-size:1em;" >class User {
+ public $name;
+}
+
+#[\AllowDynamicProperties]
+class User2 { }
+
+$user = new User();
+$user->last_name = 'Doe'; // Deprecated notice
+
+$user = new User2();
+$user->last_name = 'Doe'; // ok
+
+$user = new stdClass();
+$user->last_name = 'Doe'; // ok</code></pre>
+ </section>
+ <section id="php82_bite" >
+ <p class="p" style="font-size:2em;">¡Aguas!</p>
+ <ul>
+ <li style="font-size: 1em;margin-left: -2em;">Deprecated dynamic properties!!</li>
+ <li style="font-size: 0.6em;">use <font color="22AA11">Phan</font> and <font color="22AA11">#[\AllowDynamicProperties]</font></li>
+ <li style="font-size: 1em;margin-left: -2em;">Deprecated <font color="EE2211">${var}</font> string interpolation</li>
+ <li style="font-size: 0.6em;">use <font color="22AA11">{$var}</font></li>
+ <li style="font-size: 1em;margin-left: -2em;">Deprecated <font color="EE2211">utf8_encode()</font> and <font color="EE2211">utf8_decode()</font></li>
+ <li style="font-size: 0.6em;">decode: use <font color="22AA11">mb_convert_encoding($latin1, 'UTF-8', 'ISO-8859-1')</font></li>
+ <li style="font-size: 0.6em;">encode: use <font color="22AA11">mb_convert_encoding($utf8, 'ISO-8859-1', 'UTF8')</font></li>
+ <li style="font-size: 1em;margin-left: -2em;">Functions <font color="EE2211">strtolower()</font> and <font color="EE2211">strtoupper()</font> are no longer locale-sensitive</li>
+ <li style="font-size: 0.6em;">Use <font color="22AA11">mb_strtoupper()</font>/<font color="22AA11">mb_strtolower()</font> if you need locale-aware conversion</li>
+ </ul>
+ </section> </section>
+ <section>
+ <section id="ffi">
+ <h2 style="text-align:center;">Foreign Function Interface</h2>
+ <p class="p" style="font-size:1.1em;text-align:left;">Call a libc function</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >$ffi = FFI::cdef("int sched_getcpu(void);");
+echo "Running on cpu " . $ffi->sched_getcpu();</code></pre>
+ </section>
+ <section id="ffi_load" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Loading and calling library functions</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >$ffi = FFI::load("php_gifenc.h");</code></pre>
+ <pre><code class="c" data-trim style="font-size:0.9em;" >#define FFI_SCOPE "gifenc"
+#define FFI_LIB "libgifenc.so"
+
+typedef struct ge_GIF {
+ uint16_t w, h;
+ int depth;
+ int fd;
+ int offset;
+ int nframes;
+ uint8_t *frame, *back;
+ uint32_t partial;
+ uint8_t buffer[0xFF];
+} ge_GIF;
+
+ge_GIF *ge_new_gif(
+ const char *fname, uint16_t width, uint16_t height,
+ uint8_t *palette, int depth, int loop);
+void ge_add_frame(ge_GIF *gif, uint16_t delay);
+void ge_close_gif(ge_GIF* gif);</code></pre>
+ </section>
+ <section id="ffi_load_example" >
+ <pre><code class="php" data-trim style="font-size:1em;" >$ffi = FFI::load("php_gifenc.h");
+
+$w = 240; $h = 180;
+$cols = $ffi->new("uint8_t[12]");
+/* 4 colours: 000000, FF0000, 00FF00, 0000FF */
+$cols[3] = 0xFF; $cols[7] = 0xFF; $cols[11] = 0xFF;
+
+$gif = $ffi->ge_new_gif("test.gif", $w, $h, $cols, 2, 0);
+for($i = 0; $i < 16; $i++) {
+ for ($j = 0; $j < $w*$h; $j++) {
+ $gif->frame[$j] = ($i*6 + $j) / 12 % 8;
+ }
+ $ffi->ge_add_frame($gif, 5);
+}
+$ffi->ge_close_gif($gif);</code></pre>
+ <img src="/presentations/slides/intro/test.gif" align="center" width="240" height="180">
+ </section>
+ <section id="ffi_preload" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Preloading FFI</p>
+ <p class="p" style="font-size:0.75em;text-align:left;">/etc/php8/php-fpm-fcgi.ini:</p>
+ <pre><code class="ini" data-trim style="font-size:1em;" >ffi.enable=preload
+ffi.preload=/var/www/html/FFI/*.h
+opcache.preload=/var/www/html/preload.php
+opcache.preload_user=www-data</code></pre>
+ <p class="p" style="font-size:0.75em;text-align:left;">preload.php:</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >foreach(glob("/var/www/html/FFI/*.php") as $file) {
+ include $file;
+}</code></pre>
+ <pre><code class="shell" data-trim style="font-size:0.9em;" >cpp -P -C -D"__attribute__(ARGS)=" /usr/include/cpuinfo.h > cpuinfo-ffi.h</code></pre>
+ <p class="p" style="font-size:0.75em;text-align:left;">Edit cpuinfo-ffi.h and delete any inline code</p>
+ </section>
+ <section id="ffi_class" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Create a wrapper class</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >class CPUInfo {
+ private static ?FFI $cpu = null;
+
+ static function init() {
+ if (self::$cpu) return;
+ self::$cpu = FFI::scope("CPUINFO");
+ self::$cpu->cpuinfo_initialize();
+ }
+
+ static function name() {
+ self::init();
+ $CData = self::$cpu->cpuinfo_get_package(0);
+ return FFI::string($CData[0]->name);
+ }
+
+ static function __callStatic(string $function, array $args) {
+ self::init();
+ return self::$cpu->{'cpuinfo_'.$function}(...$args);
+ }
+}</code></pre>
+ </section>
+ <section id="ffi_class2" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Mapping a C struct</p>
+ <pre><code class="php" data-trim style="font-size:0.8em;" >class CPUFreq {
+ private static ?FFI $cpu = null;
+
+ static function init() {
+ if (self::$cpu) return;
+ self::$cpu = \FFI::scope("CPUFREQ");
+ }
+
+ static function __callStatic(string $function, array $args) {
+ self::init();
+ $ret = self::$cpu->{'cpufreq_'.$function}(...$args);
+ if ($ret instanceof FFI\CData) {
+ switch (FFI::typeof($ret)->getName()) {
+ case 'char*': $ret = FFI::string($ret); break;
+ case 'struct cpufreq_policy*':
+ $ret = [ 'min' => $ret->min,
+ 'max' => $ret->max,
+ 'gov' => FFI::string($ret->governor) ];
+ break;
+ }
+ }
+ return $ret;
+ }
+}</code></pre>
+ </section>
+ <section id="ffi_cpu" >
+ <p class="p" style="font-size:1.1em;text-align:left;">Calling it</p>
+ <pre><code class="php" data-trim style="font-size:1em;" >$cpu_name = CPUInfo::name();
+$threads = CPUInfo::get_processors_count();
+$cores = CPUInfo::get_cores_count();
+echo "$cores-core $cpu_name $threads threads\n";
+
+$cpu = 0;
+while(CPUFreq::cpu_exists($cpu) == 0) {
+ $driver = CPUFreq::get_driver($cpu);
+ $policy = CPUFreq::get_policy($cpu);
+ $governor = $policy['gov'];
+ $min = sprintf("%.2f", $policy['min']/1000);
+ $max = sprintf("%.2f", $policy['max']/1000);
+ echo "CPU " . sprintf("%02d", $cpu) .
+ " $driver $governor ($min MHz - $max MHz): " .
+ sprintf("%.2f", CPUFreq::get_freq_kernel($cpu)/1000) . " MHz\n";
+ $cpu++;
+}</code></pre>
+ </section>
+ <section id="ffi_cpu_output" >
+ <pre><code data-trim style="font-size:0.8em;" >16-core AMD Ryzen 9 3950X 32 threads
+CPU 00 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1555.64 MHz
+CPU 01 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 3500.24 MHz
+CPU 02 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 2333.11 MHz
+CPU 03 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1555.63 MHz
+CPU 04 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 623.08 MHz
+CPU 05 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 06 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 07 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 08 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 634.24 MHz
+CPU 09 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 634.24 MHz
+CPU 10 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 592.12 MHz
+CPU 11 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 592.12 MHz
+CPU 12 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 2314.04 MHz
+CPU 13 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 14 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 15 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 921.44 MHz
+CPU 16 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1613.96 MHz
+CPU 17 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1960.96 MHz
+CPU 18 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 2330.25 MHz
+CPU 19 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1555.87 MHz
+CPU 20 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1389.00 MHz
+CPU 21 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 557.21 MHz
+CPU 22 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 23 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 24 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 622.76 MHz
+CPU 25 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 26 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 592.12 MHz
+CPU 27 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 28 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 854.47 MHz
+CPU 29 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 799.01 MHz
+CPU 30 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 642.85 MHz
+CPU 31 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 844.84 MHz</code></pre>
+ </section> </section>
+ <section data-background-color="#000000">
+ <section id="j">
+ <img src="/presentations/slides/intro/carl1.jpg" align="center" width="533" height="800">
+ </section>
+ <section id="j1" >
+ <img src="/presentations/slides/intro/carl2.jpg" align="center" width="" height="">
+ </section>
+ <section id="j2" >
+ <img src="/presentations/slides/intro/carl_linuxtag.jpg" align="center" width="" height="">
+ </section>
+ <section id="j3" >
+ <img src="/presentations/slides/intro/tridge.jpg" align="center" width="" height="">
+<aside class="notes"><br />
+Tridge arguing with Linus<br />
+rsync, Samba, ccache, rzip<br />
+RIP BitKeeper<br />
+</aside>
+ </section>
+ <section id="j4" >
+ <img src="/presentations/slides/intro/roorkee.jpg" align="center" width="" height="">
+ </section>
+ <section id="j5" >
+ <img src="/presentations/slides/intro/arthurcclarke.jpg" align="center" width="" height="">
+<aside class="notes"><br />
+Arthur C. Clarke!<br />
+</aside>
+ </section>
+ <section id="j6" >
+ <img src="/presentations/slides/intro/carl_etsy.png" align="center" width="" height="">
+ </section> </section>
+ <section>
+ <section id="ematter">
+ <p class="p" style="font-size:1.5em;text-align:center;">35+ years!</p>
+ <ul style="font-size:0.8em">
+ <li>Bell Northern Research - Toronto</li>
+ <li>Northern Telecom - Toronto</li>
+ <li>Digital Media Networks - Toronto</li>
+ <li>NovAtel - Calgary</li>
+ <li>Nutec Informática - Porto Alegre, Brazil</li>
+ <li>University of Toronto IT - Toronto</li>
+ <li>Bell Global Solutions - Toronto</li>
+ <li>IBM - Raleigh, NC</li>
+ <li>Linuxcare - San Francisco</li>
+ <li>Yahoo! - Sunnyvale</li>
+ <li>WePay - Palo Alto</li>
+ <li>Etsy</li>
+ </ul>
+<aside class="notes"><br />
+I was ready to retire after Yahoo!<br />
+Ad-driven balacing-act<br />
+I don't really like programming<br />
+I don't like flying either<br />
+</aside>
+ </section>
+ <section id="ematter1" >
+ <img src="/presentations/slides/intro/lovehack-white-1000.png" align="center" width="1001" height="421">
+ </section>
+ <section id="ematter2" >
+ <p class="p" style="font-size:1.8em;text-align:center;">Create more value than you capture. -Tim O'Reilly</p>
+<aside class="notes"><br />
+Etsy<br />
+</aside>
+ </section>
+ <section id="ematter3" >
+ <p class="p" style="font-size:2em;text-align:center;">Work on things that matter (to you)</p>
+ </section> </section>
+ <section>
+ <section id="sahana0">
+ <img src="/presentations/slides/intro/slideshow_images/sahana3.png" align="center" width="1000" height="720">
+ </section>
+ <section id="sahana1" >
+ <img src="/presentations/slides/intro/slideshow_images/sahana_final.png" align="center" width="1000" height="720">
+<aside class="notes"><br />
+Can't end on a better point<br />
+</aside>
+ </section> </section>
+ <section>
+ <section id="thank_you">
+ <p class="p" style="font-size:2em;text-align:center;">¡Gracias!</p>
+<br/>
+ <div align="center" style="font-size: 1.4em; color: ; text-align: center; margin-left: 0em; margin-right: ; margin-top: ; margin-bottom: ;"><a href=":-:url:-:" target="">http://talks.php.net/etsymex22</a></div>
+<br/>
+ <p class="p" style="font-size:1.6em;text-align:center;">Interested in joining our team?</p>
+ <p class="p" style="font-size:1.3em;text-align:center;">Please email your CV/resume to</p>
+ <p class="p" style="font-size:1.4em;text-align:center;">[email protected]</p>
+ </section> </section>
+ </div>
+
+ </div>
+
+ <script src="/reveal.js/lib/js/head.min.js"></script>
+ <script src="/reveal.js/js/reveal.js"></script>
+
+ <script>
+
+ Reveal.initialize({
+ controls: true,
+ progress: true,
+ history: true,
+ center: true,
+ width: 1024,
+ height: 768,
+
+ transition: 'slide', // none/fade/slide/convex/concave/zoom
+ transitionSpeed: 'fast',
+
+ // Optional reveal.js plugins
+ dependencies: [
+ { src: '/reveal.js/lib/js/classList.js', condition: function() { return !document.body.classList; } },
+ { src: '/highlight.min.js', async: true, condition: function() { return !!document.querySelector( 'pre code' ); }, callback: function() { hljs.initHighlightingOnLoad(); } },
+ { src: '/reveal.js/plugin/zoom-js/zoom.js', async: true },
+ { src: '/reveal.js/plugin/notes/notes.js', async: true },
+ { src: '/reveal.js/plugin/line-numbers/line-numbers.js' }
+ ]
+ });
+ /* This draws the graph on the slide on a slidechanged event */
+ Reveal.addEventListener('slidechanged', function(event) {
+ var callback = "render_"+event.currentSlide.id;
+ if(typeof(window[callback])=="function") {
+ window[callback]();
+ }
+ } );
+ /* This draws the graph if we got here directly without coming from another slide */
+ Reveal.addEventListener('ready', function(event) {
+ var callback = "render_"+event.currentSlide.id;
+ if(typeof(window[callback])=="function") {
+ window[callback]();
+ }
+ } );
+ </script>
+
+ </body>
+</html>
diff --git a/etsymex22.xml b/etsymex22.xml
new file mode 100644
index 00000000..7b5df422
--- /dev/null
+++ b/etsymex22.xml
@@ -0,0 +1,44 @@
+<presentation
+ template="simple"
+ navmode="html"
+ titlecolor="#000000"
+ navbarbackground="#bbbbbb"
+ navbartopiclinks="0"
+ logo1="images/php-med-trans.png"
+ titlesize="6em"
+ navbarheight="3.5em"
+ examplebackground="#ffffff"
+ outputbackground="#ffffff"
+ exampleclass="noshadow"
+ exampleoutputclass="noshadow"
+>
+
+<topic>PHP</topic>
+<title>Modern PHP</title>
+<event></event>
+<location>Mexico City - in person 🎉</location>
+<date>Dec.7, 2022</date>
+<speaker>Rasmus Lerdorf</speaker>
+<url>http://talks.php.net/etsymex22</url>
+<twitter>@rasmus</twitter>
+
+<slide>slides/intro/titlepage.xml</slide>
+
+<slide>slides/intro/etsyphp22.xml</slide>
+<slide>slides/intro/etsyframework.xml</slide>
+<slide>slides/intro/phan_2019.xml</slide>
+<slide>slides/intro/phpspy.xml</slide>
+<slide>slides/intro/deploy_2016.xml</slide>
+<slide>slides/intro/supported.xml</slide>
+<slide>slides/intro/wp2022.xml</slide>
+<slide>slides/intro/php80_2022.xml</slide>
+<slide>slides/intro/php81_2021.xml</slide>
+<slide>slides/intro/php82_2022.xml</slide>
+<slide>slides/intro/ffi_2022.xml</slide>
+<slide>slides/intro/journey_etsy.xml</slide>
+<slide>slides/intro/matter_etsy.xml</slide>
+<slide>slides/intro/sahana.xml</slide>
+
+<slide>slides/intro/thank_you_etsy.xml</slide>
+
+</presentation>
diff --git a/slides/intro/etsyframework.xml b/slides/intro/etsyframework.xml
index 1fbca780..2515de44 100644
--- a/slides/intro/etsyframework.xml
+++ b/slides/intro/etsyframework.xml
@@ -30,7 +30,7 @@ We have tools that compile these routes for us
</notes>
<break lines="1" section="etsyfw2"/>
<blurb fontsize="1.4em" align="left">awesome.php</blurb>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
require 'bootstrap.php';
$request = HTTP_Request::getInstance();
$response = HTTP_Response::getInstance();
@@ -43,7 +43,7 @@ Very little code here, just routing us to the controller
<break lines="1" section="etsyfw3"/>
<blurb fontsize="1.4em" align="left">Code/Awesome/Controller.php</blurb>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
class Awesome_Controller extends Controller_Base {
public function doCoolThings($request, $response) {
$id = $request->getGet('id', 0);
@@ -63,7 +63,7 @@ And fan out to the API
</notes>
<break lines="1" section="etsyfw4"/>
<blurb fontsize="1.4em" align="left">Awesome_View</blurb>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
class Awesome_View implements Neu_View {
const TEMPLATE = "/templates/awesome/main.mustache";
use Neu_Traits_DefaultView;
@@ -85,7 +85,7 @@ class Awesome_View implements Neu_View {
<break lines="1" section="etsyfw5"/>
<blurb fontsize="1.4em" align="left">templates/awesome/main.mustache</blurb>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[
+<example fontsize="1em" result='0' title="" type="mustache"><![CDATA[
<div>
<p>{{thing_name}} ({{thing_id}})</p>
<ul>
diff --git a/slides/intro/etsyphp22.xml b/slides/intro/etsyphp22.xml
new file mode 100644
index 00000000..b302040b
--- /dev/null
+++ b/slides/intro/etsyphp22.xml
@@ -0,0 +1,20 @@
+<slide title="" section="etsyphp">
+
+<image width="265" height="581" filename="etsy_arch.png" align="left"/>
+<blurb fontsize="2em" align="center">PHP at Etsy</blurb>
+<list>
+<bullet fontsize="1.2em" marginleft="4em" type="none">Linux, Apache, MySQL, PHP</bullet>
+<bullet fontsize="1.2em" marginleft="4em" type="none">Memcache, Gearman, StatsD, Vitess, Redis, Kafka, Varnish</bullet>
+<bullet fontsize="1.2em" marginleft="4em" type="none">GCP, Terraform</bullet>
+</list>
+<blurb fontsize="2em" align="center">API First!</blurb>
+
+<notes>
+Global, Internal Load Balancer
+Managed Instance Groups
+Many other stacks not shown, like beacons, assets, downloads
+Gearman for longer-running Asynchronous tasks
+Crons for non-request triggered
+</notes>
+
+</slide>
diff --git a/slides/intro/ffi_2022.xml b/slides/intro/ffi_2022.xml
new file mode 100644
index 00000000..a7ee6daf
--- /dev/null
+++ b/slides/intro/ffi_2022.xml
@@ -0,0 +1,193 @@
+<slide title="" section="ffi">
+<blurb fontsize="8em" align="center">Foreign Function Interface</blurb>
+<blurb fontsize="1.1em" align="left">Call a libc function</blurb>
+
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
+$ffi = FFI::cdef("int sched_getcpu(void);");
+echo "Running on cpu " . $ffi->sched_getcpu();
+]]></example>
+
+<break lines="1" section="ffi_load"/>
+<blurb fontsize="1.1em" align="left">Loading and calling library functions</blurb>
+
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
+$ffi = FFI::load("php_gifenc.h");
+]]></example>
+
+<example fontsize="0.9em" result='0' title="" type="c"><![CDATA[<?php
+#define FFI_SCOPE "gifenc"
+#define FFI_LIB "libgifenc.so"
+
+typedef struct ge_GIF {
+ uint16_t w, h;
+ int depth;
+ int fd;
+ int offset;
+ int nframes;
+ uint8_t *frame, *back;
+ uint32_t partial;
+ uint8_t buffer[0xFF];
+} ge_GIF;
+
+ge_GIF *ge_new_gif(
+ const char *fname, uint16_t width, uint16_t height,
+ uint8_t *palette, int depth, int loop);
+void ge_add_frame(ge_GIF *gif, uint16_t delay);
+void ge_close_gif(ge_GIF* gif);
+]]></example>
+<break lines="1" section="ffi_load_example"/>
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
+$ffi = FFI::load("php_gifenc.h");
+
+$w = 240; $h = 180;
+$cols = $ffi->new("uint8_t[12]");
+/* 4 colours: 000000, FF0000, 00FF00, 0000FF */
+$cols[3] = 0xFF; $cols[7] = 0xFF; $cols[11] = 0xFF;
+
+$gif = $ffi->ge_new_gif("test.gif", $w, $h, $cols, 2, 0);
+for($i = 0; $i < 16; $i++) {
+ for ($j = 0; $j < $w*$h; $j++) {
+ $gif->frame[$j] = ($i*6 + $j) / 12 % 8;
+ }
+ $ffi->ge_add_frame($gif, 5);
+}
+$ffi->ge_close_gif($gif);
+]]></example>
+
+<image width="240" height="180" filename="test.gif" align="center"/>
+
+<break lines="1" section="ffi_preload"/>
+<blurb fontsize="1.1em" align="left">Preloading FFI</blurb>
+
+<blurb fontsize="0.75em" align="left">/etc/php8/php-fpm-fcgi.ini:</blurb>
+<example fontsize="1em" result='0' title="" type="ini"><![CDATA[
+ffi.enable=preload
+ffi.preload=/var/www/html/FFI/*.h
+opcache.preload=/var/www/html/preload.php
+opcache.preload_user=www-data
+]]></example>
+
+<blurb fontsize="0.75em" align="left">preload.php:</blurb>
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
+foreach(glob("/var/www/html/FFI/*.php") as $file) {
+ include $file;
+}
+]]></example>
+
+<example fontsize="0.9em" result='0' title="" type="shell"><![CDATA[
+cpp -P -C -D"__attribute__(ARGS)=" /usr/include/cpuinfo.h > cpuinfo-ffi.h
+]]></example>
+<blurb fontsize="0.75em" align="left">Edit cpuinfo-ffi.h and delete any inline code</blurb>
+
+<break lines="1" section="ffi_class"/>
+<blurb fontsize="1.1em" align="left">Create a wrapper class</blurb>
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
+class CPUInfo {
+ private static ?FFI $cpu = null;
+
+ static function init() {
+ if (self::$cpu) return;
+ self::$cpu = FFI::scope("CPUINFO");
+ self::$cpu->cpuinfo_initialize();
+ }
+
+ static function name() {
+ self::init();
+ $CData = self::$cpu->cpuinfo_get_package(0);
+ return FFI::string($CData[0]->name);
+ }
+
+ static function __callStatic(string $function, array $args) {
+ self::init();
+ return self::$cpu->{'cpuinfo_'.$function}(...$args);
+ }
+}
+]]></example>
+
+<break lines="1" section="ffi_class2"/>
+<blurb fontsize="1.1em" align="left">Mapping a C struct</blurb>
+<example fontsize="0.8em" result='0' title="" type="php"><![CDATA[<?php
+class CPUFreq {
+ private static ?FFI $cpu = null;
+
+ static function init() {
+ if (self::$cpu) return;
+ self::$cpu = \FFI::scope("CPUFREQ");
+ }
+
+ static function __callStatic(string $function, array $args) {
+ self::init();
+ $ret = self::$cpu->{'cpufreq_'.$function}(...$args);
+ if ($ret instanceof FFI\CData) {
+ switch (FFI::typeof($ret)->getName()) {
+ case 'char*': $ret = FFI::string($ret); break;
+ case 'struct cpufreq_policy*':
+ $ret = [ 'min' => $ret->min,
+ 'max' => $ret->max,
+ 'gov' => FFI::string($ret->governor) ];
+ break;
+ }
+ }
+ return $ret;
+ }
+}
+]]></example>
+
+<break lines="1" section="ffi_cpu"/>
+<blurb fontsize="1.1em" align="left">Calling it</blurb>
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
+$cpu_name = CPUInfo::name();
+$threads = CPUInfo::get_processors_count();
+$cores = CPUInfo::get_cores_count();
+echo "$cores-core $cpu_name $threads threads\n";
+
+$cpu = 0;
+while(CPUFreq::cpu_exists($cpu) == 0) {
+ $driver = CPUFreq::get_driver($cpu);
+ $policy = CPUFreq::get_policy($cpu);
+ $governor = $policy['gov'];
+ $min = sprintf("%.2f", $policy['min']/1000);
+ $max = sprintf("%.2f", $policy['max']/1000);
+ echo "CPU " . sprintf("%02d", $cpu) .
+ " $driver $governor ($min MHz - $max MHz): " .
+ sprintf("%.2f", CPUFreq::get_freq_kernel($cpu)/1000) . " MHz\n";
+ $cpu++;
+}
+]]></example>
+<break lines="1" section="ffi_cpu_output"/>
+<example fontsize="0.8em" result='0' title="" type=""><![CDATA[
+16-core AMD Ryzen 9 3950X 32 threads
+CPU 00 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1555.64 MHz
+CPU 01 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 3500.24 MHz
+CPU 02 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 2333.11 MHz
+CPU 03 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1555.63 MHz
+CPU 04 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 623.08 MHz
+CPU 05 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 06 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 07 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 08 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 634.24 MHz
+CPU 09 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 634.24 MHz
+CPU 10 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 592.12 MHz
+CPU 11 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 592.12 MHz
+CPU 12 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 2314.04 MHz
+CPU 13 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 14 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 15 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 921.44 MHz
+CPU 16 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1613.96 MHz
+CPU 17 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1960.96 MHz
+CPU 18 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 2330.25 MHz
+CPU 19 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1555.87 MHz
+CPU 20 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 1389.00 MHz
+CPU 21 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 557.21 MHz
+CPU 22 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 23 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 24 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 622.76 MHz
+CPU 25 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 26 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 592.12 MHz
+CPU 27 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 550.00 MHz
+CPU 28 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 854.47 MHz
+CPU 29 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 799.01 MHz
+CPU 30 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 642.85 MHz
+CPU 31 amd-pstate ondemand (550.00 MHz - 4762.00 MHz): 844.84 MHz
+]]></example>
+</slide>
diff --git a/slides/intro/php80_2022.xml b/slides/intro/php80_2022.xml
new file mode 100644
index 00000000..90e33673
--- /dev/null
+++ b/slides/intro/php80_2022.xml
@@ -0,0 +1,52 @@
+<slide title="" section="php80">
+
+<blurb fontsize="20em" align="center">PHP 8.0</blurb>
+
+<blurb fontsize="1.1em" align="left">Named Arguments</blurb>
+
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
+htmlspecialchars($string, double_encode: false);
+]]></example>
+
+<blurb fontsize="1.1em" align="left">Constructor Property Promotion</blurb>
+
+<example fontsize="1.1em" result='0' title="" type="php"><![CDATA[<?php
+class User {
+ function __construct(public string $name, private string $pwd = "") { }
+}
+]]></example>
+
+<break lines="1" section="php80_1"/>
+
+<blurb fontsize="1.1em" align="left">Nullsafe Operator with short-circuiting</blurb>
+<example fontsize="1.1em" result='0' title="" type="php"><![CDATA[<?php
+$country = $session?->user?->getAddress(geoip())?->country;
+]]></example>
+
+<blurb fontsize="1em" align="left">Match Expression, Union Types</blurb>
+
+<example fontsize="0.85em" result='0' title="" type="php"><![CDATA[<?php
+function days_in_month(string|int $month, int $year): int {
+ $leap = $year % 400;
+ $leap = !$leap|!($leap%4)&!!($leap%100); // 👀
+
+ return match(is_string($month) ? strtolower(substr($month, 0, 3)) : $month) {
+ 'apr', 4, 'jun', 6, 'sep', 9, 'nov', 11 => 30,
+ 'jan', 1, 'mar', 3, 'may', 5, 'jul', 7, 'aug', 8, 'oct', 10, 'dec', 12 => 31,
+ 'feb', 2 => $leap ? 29 : 28,
+ default => throw new InvalidArgumentException("Invalid month"),
+ };
+}
+]]></example>
+
+<break lines="1" section="php80_2"/>
+<blurb fontsize="1em" align="left">weakMap</blurb>
+<blurb fontsize="0.8em" align="left"> - Map objects to arbitrary values without preventing GC</blurb>
+
+<blurb fontsize="1em" align="left">Attributes</blurb>
+<blurb fontsize="0.8em" align="left"> - Structured metadata</blurb>
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
+function login(int $user_id, #[\SensitiveParameter] string $pwd) { }
+]]></example>
+
+</slide>
diff --git a/slides/intro/php81_2021.xml b/slides/intro/php81_2021.xml
index ce5eda24..f54b7262 100644
--- a/slides/intro/php81_2021.xml
+++ b/slides/intro/php81_2021.xml
@@ -4,8 +4,7 @@
<break lines="1" section="php81_readonly_props"/>
<blurb fontsize="1.1em" align="left">Readonly properties</blurb>
-<link align="left" href="https://wiki.php.net/rfc/readonly_properties_v2"/>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
class Test {
public readonly string $prop;
@@ -21,8 +20,7 @@ $test->prop = "foobar"; // Error
<break lines="1" section="php81_enums"/>
<blurb fontsize="1.1em" align="left">Enums</blurb>
-<link align="left" href="https://wiki.php.net/rfc/enumerations"/>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
enum Suit {
case Hearts;
case Diamonds;
@@ -36,9 +34,7 @@ pick_a_card('Spades'); // error
]]></example>
<break lines="1" section="php81_fibers"/>
-<blurb fontsize="1.1em" align="left">Fibers</blurb>
-<link align="left" href="https://wiki.php.net/rfc/fibers"/>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
use React\EventLoop\LoopInterface;
use React\Promise\PromiseInterface;
@@ -54,9 +50,7 @@ function await(PromiseInterface $promise, LoopInterface $loop): mixed {
]]></example>
<break lines="1" section="php81_fibers"/>
-<blurb fontsize="1.1em" align="left">Static Variable Inheritance</blurb>
-<link align="left" href="https://wiki.php.net/rfc/static_variable_inheritance"/>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
class A {
public static function counter() {
static $i = 0;
@@ -74,9 +68,7 @@ echo B::counter();
]]></example>
<break lines="1" section="php81_never"/>
-<blurb fontsize="1.1em" align="left">Never Return Type</blurb>
-<link align="left" href="https://wiki.php.net/rfc/noreturn_type"/>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
function redirect(string $uri): never {
header('Location: ' . $uri);
exit();
@@ -87,9 +79,7 @@ echo "this will never be executed!";
]]></example>
<break lines="1" section="php81_final"/>
-<blurb fontsize="1.1em" align="left">Final class constants</blurb>
-<link align="left" href="https://wiki.php.net/rfc/final_class_const"/>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
class Foo {
final public const X = "foo";
}
@@ -102,9 +92,7 @@ class Bar extends Foo {
]]></example>
<break lines="1" section="php81_new_init"/>
-<blurb fontsize="1.1em" align="left">New in initializers</blurb>
-<link align="left" href="https://wiki.php.net/rfc/new_in_initializers"/>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
class Test {
public function __construct(private Logger $logger = new NullLogger) {}
}
@@ -121,9 +109,7 @@ class Test {
]]></example>
<break lines="1" section="php81_first_class_callable"/>
-<blurb fontsize="1.1em" align="left">First-class callable syntax</blurb>
-<link align="left" href="https://wiki.php.net/rfc/first_class_callable_syntax"/>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
$fn = strlen(...);
$fn = $this->method(...)
$fn = Foo::method(...);
@@ -136,9 +122,7 @@ $fn = Closure::fromCallable([Foo::class, 'method']);
]]></example>
<break lines="1" section="php81_pure_intersection"/>
-<blurb fontsize="1.1em" align="left">Pure intersection types</blurb>
-<link align="left" href="https://wiki.php.net/rfc/pure-intersection-types"/>
-<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+<example fontsize="1em" result='0' title="" type="php"><![CDATA[<?php
class A {
private Traversable&Countable $countableIterator;
@@ -152,5 +136,11 @@ class A {
}
]]></example>
+<break lines="1" section="php81_misc"/>
+<list>
+ <bullet>Inheritance cache (avoid relinking classes)</bullet>
+ <bullet>JIT improvements and add support for ARM64</bullet>
+ <bullet>Optimize class name resolution</bullet>
+</list>
</slide>
diff --git a/slides/intro/php82_2022.xml b/slides/intro/php82_2022.xml
new file mode 100644
index 00000000..aa907661
--- /dev/null
+++ b/slides/intro/php82_2022.xml
@@ -0,0 +1,137 @@
+<slide title="" section="php82">
+
+<blurb fontsize="20em" align="center">PHP 8.2</blurb>
+
+<break lines="1" section="php82_readonly_class"/>
+<blurb fontsize="1.1em" align="left">Readonly Classes</blurb>
+<link align="left" fontsize="0.75em" href="https://wiki.php.net/rfc/readonly_classes"/>
+<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+readonly class Test {
+ public function __construct(public string $prop) { }
+}
+$test = new Test("Hi");
+var_dump($test->prop); // Hi
+$test->prop = "foobar"; // Cannot modify readonly property Test::$prop
+]]></example>
+<blurb fontsize="1em" align="left">Prevents dynamic properties</blurb>
+<blurb fontsize="1em" align="left">Can't be used with untyped or static properties</blurb>
+
+<break lines="1" section="php82_dnf"/>
+<blurb fontsize="1.1em" align="left">Disjunctive Normal Form (DNF) Types</blurb>
+<link align="left" fontsize="0.75em" href="https://wiki.php.net/rfc/dnf_types"/>
+<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+class A { }
+class B extends A { };
+class Foo {
+ public function bar((A&B)|null $entity): A&B {
+ if (!$entity) $entity = new B;
+ return $entity;
+ }
+}
+$c = new Foo;
+$c->bar(new B);
+]]></example>
+<blurb fontsize="0.75em" align="left">8.0 Union Types X|Y</blurb>
+<blurb fontsize="0.75em" align="left">8.1 Intersection Types X&Y</blurb>
+<blurb fontsize="0.75em" align="left">8.2 DNF Types (X&A)|(Y&B)</blurb>
+
+
+<break lines="1" section="php82_nft"/>
+<blurb fontsize="1.1em" align="left">Standalone null, false, and true types</blurb>
+<link align="left" fontsize="0.75em" href="https://wiki.php.net/rfc/null-false-standalone-types"/>
+<link align="left" fontsize="0.75em" href="https://wiki.php.net/rfc/true-type"/>
+<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+class Falsy {
+ public function alwaysFalse(): false { /* ... */ }
+
+ public function alwaysTrue(): true { /* ... */ }
+
+ public function alwaysNull(): null { /* ... */ }
+}
+]]></example>
+
+<break lines="1" section="php82_random"/>
+<blurb fontsize="1.1em" align="left">New "Random" extension</blurb>
+<link align="left" fontsize="0.75em" href="https://wiki.php.net/rfc/rng_extension"/>
+<link align="left" fontsize="0.75em" href="https://wiki.php.net/rfc/random_extension_improvement"/>
+<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+$rng = $is_production
+ ? new Random\Engine\Secure()
+ : new Random\Engine\PCG64(1234);
+
+$randomizer = new Random\Randomizer($rng);
+$randomizer->shuffleString('Testing');
+]]></example>
+<blurb align="left" fontsize="0.75em">Provides multiple RNG engines as opposed to just using Mersenne Twister</blurb>
+
+<break lines="1" section="php82_trait_constants"/>
+<blurb fontsize="1.1em" align="left">Constants in Traits</blurb>
+<link align="left" fontsize="0.75em" href="https://wiki.php.net/rfc/constants_in_traits"/>
+<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+trait T {
+ public const CONSTANT = 1;
+ public function bar(): int {
+ return self::CONSTANT;
+ }
+}
+
+class C {
+ use T;
+}
+
+var_dump(C::CONSTANT); // 1
+]]></example>
+
+<break lines="1" section="php82_sensitive_param"/>
+<blurb fontsize="1.1em" align="left">Sensitive Parameters</blurb>
+<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+class User {
+ function __construct(string $id, #[\SensitiveParameter] string $pwd) {
+ throw new \Exception("Error");
+ }
+}
+$u = new User('rasmus', 'very-secret');
+]]></example>
+<example fontsize="0.4em" result='1' hide='1' title="" type=""><![CDATA[
+Fatal error: Uncaught Exception
+Stack trace:
+#0 /home/rasmus/c(7): User->__construct('rasmus', Object(SensitiveParameterValue))
+#1 {main}
+]]></example>
+
+<break lines="1" section="php82_ddprop"/>
+<blurb fontsize="1.1em" align="left">Deprecate dynamic properties</blurb>
+<link align="left" fontsize="0.75em" href="https://wiki.php.net/rfc/deprecate_dynamic_properties"/>
+<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
+class User {
+ public $name;
+}
+
+#[\AllowDynamicProperties]
+class User2 { }
+
+$user = new User();
+$user->last_name = 'Doe'; // Deprecated notice
+
+$user = new User2();
+$user->last_name = 'Doe'; // ok
+
+$user = new stdClass();
+$user->last_name = 'Doe'; // ok
+]]></example>
+
+<break lines="1" section="php82_bite"/>
+<blurb fontsize="2em">¡Aguas!</blurb>
+<list>
+ <bullet fontsize="1em" marginleft="-2em">Deprecated dynamic properties!!</bullet>
+ <bullet fontsize="0.6em" level="2">use |22AA11|Phan| and |22AA11|#[\AllowDynamicProperties]|</bullet>
+ <bullet fontsize="1em" marginleft="-2em">Deprecated |EE2211|${var}| string interpolation</bullet>
+ <bullet fontsize="0.6em" level="2">use |22AA11|{$var}|</bullet>
+ <bullet fontsize="1em" marginleft="-2em">Deprecated |EE2211|utf8_encode()| and |EE2211|utf8_decode()|</bullet>
+ <bullet fontsize="0.6em" level="2">decode: use |22AA11|mb_convert_encoding($latin1, 'UTF-8', 'ISO-8859-1')|</bullet>
+ <bullet fontsize="0.6em" level="2">encode: use |22AA11|mb_convert_encoding($utf8, 'ISO-8859-1', 'UTF8')|</bullet>
+ <bullet fontsize="1em" marginleft="-2em">Functions |EE2211|strtolower()| and |EE2211|strtoupper()| are no longer locale-sensitive</bullet>
+ <bullet fontsize="0.6em" level="2">Use |22AA11|mb_strtoupper()|/|22AA11|mb_strtolower()| if you need locale-aware conversion</bullet>
+</list>
+
+</slide>
diff --git a/slides/intro/wp2022.js b/slides/intro/wp2022.js
new file mode 100644
index 00000000..012bc48c
--- /dev/null
+++ b/slides/intro/wp2022.js
@@ -0,0 +1,133 @@
+window["render_wpbench"] = function() {
+ $('#wpbench_container').highcharts({
+ chart: {
+ type: 'column'
+ },
+ title: {
+ text: 'Wordpress 5.7',
+ style: { fontSize: '40px' }
+ },
+ subtitle: {
+ text: 'http://wordpress.localhost/2021/03/20/hello-world/',
+ style: { fontSize: '20px' }
+ },
+ xAxis: [{
+ categories: [ '5.3 (2009)', '5.4 (2012)', '5.5 (2013)', '5.6 (2014)', '7.0 (2015)', '7.1 (2016)', '7.2 (2017)', '7.3 (2018)', '7.4 (2019)', '8.0 (2020)', '8.1 (2021)', '8.2 (2022)' ],
+ labels: {
+ style: { color: '#000', fontSize: '20px' }
+ }
+ }],
+ yAxis: [{
+ min: 0,
+ showEmpty: false,
+ title: {
+ text: 'Req/sec',
+ style: { fontSize: '25px' }
+ },
+ labels: {
+ style: { color: '#111', fontSize: '15px' }
+ }
+ }, {
+ min: 0,
+ showEmpty: false,
+ title: {
+ text: 'Latency (ms)',
+ style: { fontSize: '25px' }
+ },
+ labels: {
+ format: '{value}ms',
+ style: { color: '#111', fontSize: '15px' }
+ },
+ opposite: true
+ }],
+ tooltip: {
+ enabled: false
+ },
+ legend: {
+ title: { text: 'Concurrent clients' }
+ },
+ plotOptions: {
+ column: {
+ pointPadding: 0.01,
+ groupPadding: 0.05,
+ borderWidth: 0
+ }
+ },
+ series: [{
+ name: 'r/s @ 10',
+ yAxis: 0,
+ data: [153.90,169.68,173.82,184.57,419.23,428.15,455.23,503.68,506.95,526.13,534.99,549.10],
+ dataLabels: {
+ enabled: true,
+ rotation: -90,
+ color: '#000',
+ align: 'right',
+ x: 4,
+ y: 5,
+ style: {
+ fontSize: '13px',
+ fontFamily: 'Verdana, sans-serif',
+ },
+ format: '{point.y:.0f}'
+ },
+ visible: false
+ }, {
+ name: 'r/s @ 20',
+ yAxis: 0,
+ data: [154.37,172.02,175.07,187.01,432.57,434.57,465.28,520.20,533.06,548.16,558.78,572.15],
+ dataLabels: {
+ enabled: true,
+ rotation: -90,
+ color: '#fff',
+ align: 'right',
+ x: 4,
+ y: 5,
+ style: {
+ fontSize: '13px',
+ fontFamily: 'Verdana, sans-serif',
+ },
+ format: '{point.y:.0f}'
+ },
+ visible: true
+ }, {
+ name: 'latency @ 10',
+ yAxis: 1,
+ data: [70,47.25,46.25,43.48,19.71,18.88,17.59,15.90,14.2,13.7,13.1,12.7],
+ tooltip: { valueSuffix: 'ms' },
+ dataLabels: {
+ enabled: true,
+ rotation: -90,
+ color: '#000',
+ align: 'right',
+ x: 4,
+ y: 5,
+ style: {
+ fontSize: '13px',
+ fontFamily: 'Verdana, sans-serif',
+ },
+ format: '{point.y:.0f}'
+ },
+ visible: false
+ }, {
+ name: 'latency @ 20',
+ yAxis: 1,
+ data: [130,116.33,115.15,110.34,47.08,46.04,43.57,38.45,37.2,36.5,35.8,35.4],
+ tooltip: { valueSuffix: 'ms' },
+ dataLabels: {
+ enabled: true,
+ rotation: -90,
+ color: '#000',
+ align: 'right',
+ x: 4,
+ y: 5,
+ style: {
+ fontSize: '13px',
+ fontFamily: 'Verdana, sans-serif',
+ },
+ format: '{point.y:.0f}'
+ },
+ visible: false
+ }],
+ credits: false
+ });
+}
diff --git a/slides/intro/wp2022.xml b/slides/intro/wp2022.xml
new file mode 100644
index 00000000..984f35cf
--- /dev/null
+++ b/slides/intro/wp2022.xml
@@ -0,0 +1,8 @@
+<slide title="" section="wpbench">
+
+<literal><![CDATA[
+<div id="wpbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/wp2022.js"></script>
+]]></literal>
+
+</slide>