com presentations: Add section on zero-cost assertions now that they actually work: slides/intro/php7_2015s.xml taiw an15.html taiwan15.xml
[email protected] (Rasmus Lerdorf) Tue, 06 Oct 2015 08:46:27 +0000
| Newsgroups | php.pres |
|---|---|
| Message-ID | <[email protected]> |
Commit: 62a24fbc4e6aaebf50d03bae0d5042474c25ecd1 Author: Rasmus Lerdorf <[email protected]> Tue, 6 Oct 2015 17:46:27 +0900 Parents: acd3d4a9dcde4a7ca7ba21788d865acb70967442 Branches: master Link: http://git.php.net/?p=presentations.git;a=commitdiff;h=62a24fbc4e6aaebf50d03bae0d5042474c25ecd1 Log: Add section on zero-cost assertions now that they actually work Changed paths: M slides/intro/php7_2015s.xml A taiwan15.html A taiwan15.xml
diff_62a24fbc4e6aaebf50d03bae0d5042474c25ecd1.txt
(text/plain, 47.8 KB)
diff --git a/slides/intro/php7_2015s.xml b/slides/intro/php7_2015s.xml
index 03508ee..9319013 100644
--- a/slides/intro/php7_2015s.xml
+++ b/slides/intro/php7_2015s.xml
@@ -314,6 +314,32 @@ try {
// Exception: Call to a member function method() on a non-object
]]></example>
+<break lines="1" section="php7assert"/>
+<blurb fontsize="1.1em" align="left">✔ Zero-cost Assertions</blurb>
+<example fontsize="1.1em" result='0' title=""><![CDATA[
+<?php
+function test($arg) {
+ assert($arg > 20 && $arg < 110, "$arg is invalid");
+}
+ini_set('zend.assertions',0); test(16);
+ini_set('zend.assertions',1); test(17);
+ini_set('assert.exception',1); test(18);
+]]></example>
+<example fontsize="0.5em" result='1' hide='1' title=""><![CDATA[
+Warning: assert(): 17 is invalid failed in /home/rasmus/assert.php on line 3
+Fatal error: Uncaught AssertionError: 18 is invalid in /home/rasmus/assert.php:3
+Stack trace:
+#0 /home/rasmus/assert.php(3): assert(false, '18 is invalid')
+#1 /home/rasmus/assert.php(13): test(18)
+#2 {main}
+ thrown in /home/rasmus/assert.php on line 3
+]]></example>
+<example fontsize="1.1em" result='0' title="" type="ini"><![CDATA[
+; Completely skip compiling assert() calls
+; (can only be set in php.ini)
+zend.assertions = -1
+]]></example>
+
<break lines="1" section="php7closecall"/>
<blurb fontsize="1.1em" align="left">✔ Added Closure::call()</blurb>
<example fontsize="1.1em" result='0' title=""><![CDATA[
diff --git a/taiwan15.html b/taiwan15.html
new file mode 100644
index 0000000..96d3638
--- /dev/null
+++ b/taiwan15.html
@@ -0,0 +1,1097 @@
+<!doctype html>
+<html lang="en">
+
+ <head>
+ <meta charset="utf-8">
+
+ <title>Speeding up the Web with PHP 7</title>
+
+ <meta name="description" content="Speeding up the Web with PHP 7">
+ <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">
+
+ <!-- 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 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;
+ }
+ /* 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>Speeding up the Web with PHP 7</h1>
+ <h3>PHPConf Taiwan 2015</h3>
+ <h3>Taipei</h3>
+ <h3>Oct.9, 2015</h3>
+ <a href="http://talks.php.net/taiwan15">http://talks.php.net/taiwan15</a><br><br>
+ <p>Rasmus Lerdorf<br>
+ <small><a href="http://twitter.com/@rasmus">@rasmus</a></small>
+ </p>
+ <aside class="notes">
+ PHP in 2015 with a focus on performance </aside>
+ </section>
+ <section>
+ <h1 style="text-align:center;">20 Years of PHP!??</h1>
+<aside class="notes"><br />
+Argh!<br />
+</aside>
+ </section>
+ <section>
+ <h3 class="p">PHP Announcement June 8, 1995</h3>
+ <h4 class="p">Posted to comp.infosystems.www.authoring.cgi</h4>
+ <pre><code class="html" data-trim>Subject: Announce: Personal Home Page Tools (PHP Tools)
+
+Announcing the Personal Home Page Tools (PHP Tools) version 1.0.
+These tools are a set of small tight cgi binaries written in C.
+They perform a number of functions including:
+
+. Logging accesses to your pages in your own private log files
+. Real-time viewing of log information
+. Providing a nice interface to this log information
+. Displaying last access information right on your pages
+. Full daily and total access counters
+. Banning access to users based on their domain
+. Password protecting pages based on users' domains
+. Tracking accesses ** based on users' e-mail addresses **
+. Tracking referring URL's - HTTP_REFERER support
+. Performing server-side includes without needing server support for it
+. Ability to not log accesses from certain domains (ie. your own)
+. Easily create and display forms
+. Ability to use form information in following documents
+
+Here is what you don't need to use these tools:
+
+. You do not need root access - install in your ~/public_html dir
+. You do not need server-side includes enabled in your server
+. You do not need access to Perl or Tcl or any other script interpreter
+. You do not need access to the httpd log files
+
+The only requirement for these tools to work is that you have
+the ability to execute your own cgi programs. Ask your system
+administrator if you are not sure what this means.
+
+The tools also allow you to implement a guestbook or any other
+form that needs to write information and display it to users
+later in about 2 minutes.
+
+The tools are in the public domain distributed under the GNU
+Public License. Yes, that means they are free!
+
+For a complete demonstration of these tools, point your browser
+at: http://www.io.org/~rasmus
+
+--
+Rasmus Lerdorf
[email protected]
+http://www.io.org/~rasmus</code></pre>
+<aside class="notes"><br />
+- focused on problems that could be solved<br />
+- PHP was hidden in there in these two points:<br />
+ . Easily create and display forms<br />
+ . Ability to use form information in following documents<br />
+</aside>
+ </section>
+ <section>
+ <h2>C API for the Web</h2>
+ <pre><code class="C" data-trim>void Cos(void) {
+ Stack *s;
+ char temp[64];
+
+ s = Pop();
+ if(!s) {
+ Error("Stack error in cos");
+ return;
+ }
+ sprintf(temp,"%f",cos(s->douval));
+ Push(temp,DNUMBER);
+}</code></pre>
+ <h4 class="p">And you could then use it like this:</h4>
+ <pre><code class="nohighlight" data-trim><html><head><title>Cos Example</title></head>
+<body><h1>Cos Example</h1>
+<?echo Cos($input)>
+</body></html></code></pre>
+<aside class="notes"><br />
+Actually the very first markup used html comments<br />
+<? ... > came shortly after.<br />
+Note the lack of the closing '?'<br />
+BUT nobody was interested!<br />
+</aside>
+ </section>
+ <section>
+ <section id="php7">
+ <img src="/presentations/slides/intro/php7trans-200.png" width="" height="">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ engine improvements</p>
+ <ul>
+ <li style="font-size: 1em;">100%+ performance gain on most real-world applications</li>
+ <li style="font-size: 1em;">Lower memory usage</li>
+ <li style="font-size: 1em;">Native thread local storage</li>
+ </ul>
+ </section>
+<section id="php7pcache1">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Persistent secondary file-based cache for OPCache</p>
+ <img src="/presentations/slides/intro/pcache.png" width="" height="">
+ </section>
+<section id="php7pcache3">
+ <pre><code class="ini" data-trim style="font-size:1.1em;">; --enable-opcache-file
+; php.ini
+opcache.file_cache=/var/tmp
+
+; php-cli.ini
+opcache.enable_cli=1
+opcache.file_cache=/var/tmp
+opcache.file_cache_only=1</code></pre>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1em;">$ time composer >/dev/null
+real 0m0.040s
+user 0m0.032s
+sys 0m0.004s
+
+$ time composer >/dev/null
+real 0m0.019s
+user 0m0.016s
+sys 0m0.000s
+
+$ time php -d opcache.enable=0 /usr/local/bin/composer >/dev/null
+real 0m0.033s
+user 0m0.032s
+sys 0m0.000s</code></pre>
+ </section>
+<section id="php7pcache4">
+ <pre><code class="shell nohighlight" data-trim style="font-size:0.78em;">/var/tmp
+├── 7eeb6fe88104116c27c5650ddd83abf0
+│ └── usr
+│ └── local
+│ └── bin
+│ └── composer.bin
+└── 7eeb6fe88104116c27c5650ddd83abf0phar:
+ └── usr
+ └── local
+ └── bin
+ └── composer
+ ├── bin
+ │ └── composer.bin
+ ├── src
+ │ ├── bootstrap.php.bin
+ │ └── Composer
+ │ ├── Command
+ │ │ ├── AboutCommand.php.bin
+ │ │ ├── ArchiveCommand.php.bin
+ │ │ ├── ClearCacheCommand.php.bin
+ │ │ ├── Command.php.bin
+ │ │ ├── ConfigCommand.php.bin
+ │ │ ├── CreateProjectCommand.php.bin
+ │ │ ├── DependsCommand.php.bin
+ │ │ ├── DiagnoseCommand.php.bin
+ │ │ ├── DumpAutoloadCommand.php.bin
+ │ │ ├── GlobalCommand.php.bin
+ │ │ ├── Helper
+ │ │ │ └── DialogHelper.php.bin
+ │ │ ├── HomeCommand.php.bin
+ │ │ ├── InitCommand.php.bin
+ │ │ ├── InstallCommand.php.bin
+ │ │ ├── LicensesCommand.php.bin
+ │ │ ├── RemoveCommand.php.bin
+ │ │ ├── RequireCommand.php.bin
+ │ │ ├── RunScriptCommand.php.bin
+ │ │ ├── SearchCommand.php.bin
+ │ │ ├── SelfUpdateCommand.php.bin
+ │ │ ├── ShowCommand.php.bin
+ │ │ ├── StatusCommand.php.bin
+ │ │ ├── UpdateCommand.php.bin
+ │ │ └── ValidateCommand.php.bin
+ │ ├── Composer.php.bin
+ │ ├── Console
+ │ │ └── Application.php.bin
+ │ ├── Factory.php.bin
+ │ ├── IO
+ │ │ ├── BaseIO.php.bin
+ │ │ ├── ConsoleIO.php.bin
+ │ │ └── IOInterface.php.bin
+ │ ├── Package
+ │ │ ├── BasePackage.php.bin
+ │ │ └── PackageInterface.php.bin
+ │ ├── Script
+ │ │ └── ScriptEvents.php.bin
+ │ └── Util
+ │ └── ErrorHandler.php.bin
+ └── vendor
+ ├── autoload.php.bin
+ ├── composer
+ │ ├── autoload_classmap.php.bin
+ │ ├── autoload_namespaces.php.bin
+ │ ├── autoload_psr4.php.bin
+ │ ├── autoload_real.php.bin
+ │ └── ClassLoader.php.bin
+ └── symfony
+ └── console
+ └── Symfony
+ └── Component
+ └── Console
+ ├── Application.php.bin
+ ├── Command
+ │ ├── Command.php.bin
+ │ ├── HelpCommand.php.bin
+ │ └── ListCommand.php.bin
+ ├── Descriptor
+ │ ├── ApplicationDescription.php.bin
+ │ ├── DescriptorInterface.php.bin
+ │ ├── Descriptor.php.bin
+ │ ├── JsonDescriptor.php.bin
+ │ ├── MarkdownDescriptor.php.bin
+ │ ├── TextDescriptor.php.bin
+ │ └── XmlDescriptor.php.bin
+ ├── Formatter
+ │ ├── OutputFormatterInterface.php.bin
+ │ ├── OutputFormatter.php.bin
+ │ ├── OutputFormatterStyleInterface.php.bin
+ │ ├── OutputFormatterStyle.php.bin
+ │ └── OutputFormatterStyleStack.php.bin
+ ├── Helper
+ │ ├── DebugFormatterHelper.php.bin
+ │ ├── DescriptorHelper.php.bin
+ │ ├── DialogHelper.php.bin
+ │ ├── FormatterHelper.php.bin
+ │ ├── HelperInterface.php.bin
+ │ ├── Helper.php.bin
+ │ ├── HelperSet.php.bin
+ │ ├── InputAwareHelper.php.bin
+ │ ├── ProcessHelper.php.bin
+ │ ├── ProgressHelper.php.bin
+ │ ├── QuestionHelper.php.bin
+ │ ├── TableHelper.php.bin
+ │ ├── Table.php.bin
+ │ └── TableStyle.php.bin
+ ├── Input
+ │ ├── ArgvInput.php.bin
+ │ ├── ArrayInput.php.bin
+ │ ├── InputArgument.php.bin
+ │ ├── InputAwareInterface.php.bin
+ │ ├── InputDefinition.php.bin
+ │ ├── InputInterface.php.bin
+ │ ├── InputOption.php.bin
+ │ └── Input.php.bin
+ └── Output
+ ├── ConsoleOutputInterface.php.bin
+ ├── ConsoleOutput.php.bin
+ ├── NullOutput.php.bin
+ ├── OutputInterface.php.bin
+ ├── Output.php.bin
+ └── StreamOutput.php.bin
+
+32 directories, 87 files</code></pre>
+ </section>
+<section id="php7ast">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Abstract Syntax Tree!!</p>
+ <pre><code data-trim style="font-size:1.1em;">echo substr("abc", [1,2]);</code></pre>
+ <pre><code class="shell nohighlight" data-trim style="font-size:0.8em;">% phan -a test.php
+AST_STMT_LIST @ 1
+ 0: AST_STMT_LIST @ 2
+ 0: AST_ECHO @ 2
+ 0: AST_CALL @ 2
+ 0: AST_NAME @ 2
+ flags: NAME_NOT_FQ (1)
+ 0: "substr"
+ 1: AST_ARG_LIST @ 2
+ 0: "abc"
+ 1: AST_ARRAY @ 2
+ 0: AST_ARRAY_ELEM @ 2
+ flags: 0
+ 0: 1
+ 1: null
+ 1: AST_ARRAY_ELEM @ 2
+ flags: 0
+ 0: 2
+ 1: null</code></pre>
+ <pre><code class="shell nohighlight" data-trim style="font-size:0.8em;">% phan -a test.php
+test.php:2 TypeError arg#2(start) is int[] but substr() takes int</code></pre>
+ </section>
+<section id="php7ret">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Return Types</p>
+ <pre><code data-trim style="font-size:1.1em;">function get_config(): array {
+ return 42;
+}
+get_config();
+
+// Catchable fatal error: Return value of get_config() must
+// be of the type array, integer returned in %s on line %d</code></pre>
+ </section>
+<section id="php7STH">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Coercive Scalar Types</p>
+ <pre><code data-trim style="font-size:1.1em;">function logmsg(string $msg, int $level, float $severity) {
+ var_dump($msg); // string(1) "1"
+ var_dump($level); // int(2)
+ var_dump($severity); // float(3)
+}
+logmsg(1, "2.5", 3);</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Strict Scalar Types</p>
+ <pre><code data-trim style="font-size:1.1em;">declare(strict_types=1);
+
+logmsg(1, "2.5", 3);</code></pre>
+ <pre><code data-trim style="font-size:1.1em;">Fatal error: Argument 1 passed to logmsg() must be of the
+type string, integer given</code></pre>
+ </section>
+<section id="php7anon">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Anonymous Classes</p>
+ <pre><code data-trim style="font-size:1.2em;">return new class($controller) implements Page {
+ public function __construct($controller) {
+ /* ... */
+ }
+ /* ... */
+};
+
+class MyObject extends MyStuff {
+ public function getInterface() {
+ return new class implements MyInterface {
+ /* ... */
+ };
+ }
+}</code></pre>
+ </section>
+<section id="php7coalesce">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Null Coalesce Operator</p>
+ <pre><code data-trim style="font-size:1.5em;">$a = NULL;
+$b = 1;
+$c = 2;
+
+echo $a ?? $b; // 1
+echo $c ?? $b; // 2
+echo $a ?? $b ?? $c; // 1
+echo $a ?? $x ?? $c; // 2</code></pre>
+ </section>
+<section id="Spaceship">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Spaceship Operator</p>
+ <pre><code data-trim style="font-size:1.5em;">|=| Tie Fighter
+k=k Tie Interceptor
+<==> Tie Bomber
+<=> Tie Advanced X1 ✔</code></pre>
+ <pre><code data-trim style="font-size:1.1em;">function cmp_php5($a, $b) {
+ return ($a < $b) ? -1 : (($a >$b) ? 1 : 0);
+}
+
+function cmp_php7($a, $b) {
+ return $a <=> $b;
+}</code></pre>
+ </section>
+<section id="php7excep">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Exceptions on Fatals</p>
+ <pre><code data-trim style="font-size:1.1em;">function call_method($obj) {
+ $obj->method();
+}
+
+call_method(null);
+// Fatal error: Call to a member function method() on a non-object</code></pre>
+ <pre><code data-trim style="font-size:1.1em;">try {
+ call_method(null);
+} catch (EngineException $e) {
+ echo "Exception: {$e->getMessage()}\n";
+}
+// Exception: Call to a member function method() on a non-object</code></pre>
+ </section>
+<section id="php7assert">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Zero-cost Assertions</p>
+ <pre><code data-trim style="font-size:1.1em;">function test($arg) {
+ assert($arg > 20 && $arg < 110, "$arg is invalid");
+}
+ini_set('zend.assertions',0); test(16);
+ini_set('zend.assertions',1); test(17);
+ini_set('assert.exception',1); test(18);</code></pre>
+ <pre class="output" style="font-size:0.5em;">Warning: assert(): 17 is invalid failed in /home/rasmus/assert.php on line 3
+Fatal error: Uncaught AssertionError: 18 is invalid in /home/rasmus/assert.php:3
+Stack trace:
+#0 /home/rasmus/assert.php(3): assert(false, '18 is invalid')
+#1 /home/rasmus/assert.php(13): test(18)
+#2 {main}
+ thrown in /home/rasmus/assert.php on line 3 </pre> <pre><code class="ini" data-trim style="font-size:1.1em;">; Completely skip compiling assert() calls
+; (can only be set in php.ini)
+zend.assertions = -1</code></pre>
+ </section>
+<section id="php7closecall">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Added Closure::call()</p>
+ <pre><code data-trim style="font-size:1.1em;">$f = function () {
+ return $this->n;
+};
+class MyClass {
+ private $n = 42;
+}
+$myC = new MyClass;
+$c = $f->bindTo($myC, "MyClass");
+$c();</code></pre>
+ <pre><code data-trim style="font-size:1.1em;">$f = function () {
+ return $this->n;
+};
+class MyClass {
+ private $n = 42;
+}
+$myC = new MyClass;
+$f->call($myC);</code></pre>
+ </section>
+<section id="php7cleanups">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Removal of many deprecated features<BR/>
+ (Your PHP4 code will break!)</p>
+ <pre><code data-trim>- ext/ereg (use ext/pcre instead)
+- preg_replace() eval modifier (use preg_replace_callback() instead)
+- ext/mysql (use ext/mysqli or ext/pdo_mysql instead)
+- Assignment of new by reference
+- Scoped calls of non-static methods from incompatible $this context
+
+- dl() in php-fpm
+- set_magic_quotes_runtime() and magic_quotes_runtime()
+- set_socket_blocking() (use stream_set_blocking() instead)
+- mcrypt_generic_end() (use mcrypt_generic_deinit() instead)
+- mcrypt_ecb, mcrypt_cbc, mcrypt_cfb and mcrypt_ofb
+ (use mcrypt_encrypt() and mcrypt_decrypt() instead)
+- datefmt_set_timezone_id() and IntlDateFormatter::setTimeZoneID()
+ (use datefmt_set_timezone() or IntlDateFormatter::setTimeZone() instead)
+
+- xsl.security_prefs (use XsltProcessor::setSecurityPrefs() instead)
+- iconv.input_encoding, iconv.output_encoding, iconv.internal_encoding,
+ mbstring.http_input, mbstring.http_output and mbstring.internal_encoding
+ (use php.input_encoding, php.internal_encoding and php.output_encoding instead)
+
+- $is_dst parameter of the mktime() and gmmktime() functions
+- # style comments in ini files (use ; style comments instead)
+- String category names in setlocale() (use LC_* constants instead)
+- Unsafe curl file uploads (use CurlFile instead)
+- PDO::PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT driver option
+ (use PDO::ATTR_EMULATE_PREPARES instead)
+- CN_match and SNI_server_name stream context option (use peer_name instead)</code></pre>
+ </section>
+<section id="php7reserved">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ New reserved words:</p>
+ <ul>
+ <li style="font-size: 1em;">bool</li>
+ <li style="font-size: 1em;">int</li>
+ <li style="font-size: 1em;">float</li>
+ <li style="font-size: 1em;">string</li>
+ <li style="font-size: 1em;">null</li>
+ <li style="font-size: 1em;">false</li>
+ <li style="font-size: 1em;">true</li>
+ <li style="font-size: 1em;">resource</li>
+ <li style="font-size: 1em;">object</li>
+ <li style="font-size: 1em;">mixed</li>
+ <li style="font-size: 1em;">numeric</li>
+ </ul>
+ </section>
+<section id="php7num">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ 64-bit integer support on Windows</p>
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Cleanup edge-case integer overflow/underflow</p>
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Support for strings with length >= 2^31 bytes in 64 bit builds.</p>
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Parse error on invalid numeric literals</p>
+ <pre><code data-trim>$mask = 0855; // Parse error: Invalid numeric literal</code></pre>
+ </section>
+<section id="php7UVS">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Uniform variable syntax</p>
+ <pre><code data-trim>// left-to-right
+$this->$belongs_to['column']
+// vs.
+$this->{$belongs_to['column']}
+
+// support missing combinations of operations
+$foo()['bar']()
+[$obj1, $obj2][0]->prop
+getStr(){0}
+
+// support nested ::
+$foo['bar']::$baz
+$foo::$bar::$baz
+$foo->bar()::baz()
+
+// support nested ()
+foo()()
+$foo->bar()()
+Foo::bar()()
+$foo()()
+
+// support operations on arbitrary (...) expressions
+(...)['foo']
+(...)->foo
+(...)->foo()
+(...)::$foo
+(...)::foo()
+(...)()
+
+// two more practical examples for the last point
+(function() { ... })()
+($obj->closure)()
+
+// support all operations on dereferencable scalars
+// (not very useful)
+"string"->toLower()
+[$obj, 'method']()
+'Foo'::$bar</code></pre>
+ </section>
+<section id="php7phanbc">
+ <pre><code data-trim style="font-size:1em;">echo preg_replace('/:-:(.*?):-:/e', '$this->pres->\\1', $text);</code></pre>
+ <pre><code data-trim style="font-size:1em;">echo preg_replace_callback(
+ '/:-:(.*?):-:/',
+ function($matches) {
+ return $this->pres->$matches[1]; // Oops!
+ },
+ $text);</code></pre>
+ <pre><code class="shell nohighlight" data-trim style="font-size:0.8em;">% phan -b display.php
+Files scanned: 1
+Time: 0.13s
+Classes: 8
+Methods: 55
+Functions: 5
+Closures: 5
+Traits: 0
+Conditionals: 307
+Issues found: 1
+
+display.php:416 CompatError expression may not be PHP 7 compatible</code></pre>
+ <pre><code data-trim style="font-size:1em;">echo preg_replace_callback(
+ '/:-:(.*?):-:/',
+ function($matches) {
+ return $this->pres->{$matches[1]}; // Ok
+ },
+ $text);</code></pre>
+ </section>
+<section id="php7unicode">
+ <p class="p" style="font-size:1.1em;text-align:left;">✔ Unicode Codepoint Escape Syntax</p>
+ <pre><code data-trim style="font-size:1.2em;">echo "\u{202E}Right-to-left text";
+
+echo "\u{1F602}";</code></pre>
+ <pre class="output" style="font-size:1.2em;">Right-to-left text😂 </pre> <p class="p" style="font-size:1.1em;text-align:left;">✔ ICU IntlChar class added to intl extension</p>
+ </section>
+<section id="php7more">
+ <p class="p" style="font-size:1.5em;">GA release scheduled for October 2015</p>
+ </section> </section>
+ <section>
+ <section id="perf2014">
+ <p class="p" style="font-size:0.8em;text-align:left;">Time and number of machine instructions for 100 requests against Wordpress-3.6.0 front page</p>
+
+<div id="perf2014_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/perf2014.js"></script>
+ <p class="p" style="font-size:0.5em;">(click on legend items to show/hide data sets)</p>
+ </section> </section>
+ <section>
+ <section id="php7perfdetail">
+ <ul>
+ <li style="font-size: 1em;">zval size reduced from 24 to 16 bytes</li>
+ <li style="font-size: 1em;">Hashtable size reduced from 72 to 56 bytes</li>
+ <li style="font-size: 1em;">Hashtable bucket size reduced from 72 to 32 bytes</li>
+ <li style="font-size: 1em;">Immutable array optimization</li>
+ </ul>
+ <pre><code data-trim style="font-size:1.1em;">$a = [];
+for($i=0; $i < 100000;$i++) $a[] = ['abc'];
+echo memory_get_usage(true);
+// PHP 5.x 43M
+// PHP 7.0 6M</code></pre>
+ </section>
+<section id="php7perfdetail2">
+ <ul>
+ <li style="font-size: 1em;">Much more cpu cache friendly</li>
+ <li style="font-size: 1em;">New memory allocator similar to jemalloc</li>
+ <li style="font-size: 1em;">Faster hashtable iteration API</li>
+ <li style="font-size: 1em;">Array duplication optimization</li>
+ <li style="font-size: 1em;">PCRE JIT enabled by default</li>
+ <li style="font-size: 1em;">Fast ZPP (ZendParseParameters) implementation</li>
+ <li style="font-size: 1em;">Faster stack-allocated zvals (instead of heap)</li>
+ <li style="font-size: 1em;">Optimized VM calling</li>
+ <li style="font-size: 1em;">Global register variables with gcc 4.8+</li>
+ <li style="font-size: 1em;">plus hundreds of micro-optimizations</li>
+ </ul>
+ </section>
+<section id="php7detail3">
+ <h1 style="text-align:center;">JIT?</h1>
+ </section> </section>
+ <section>
+ <h1 style="text-align:center;">Lies, damn lies and benchmarks</h1>
+ </section>
+ <section>
+ <section id="boxspecs">
+ <h2 margin-bottom="2em">Test Box Specs</h2><br>
+ <ul>
+ <li style="font-size: 0.8em;">Gigabyte Z87X-UD3H i7-4771 4 cores @ 3.50GHz w/ 16G of Ram @ 1600MHz</li>
+ <li style="font-size: 0.8em;">Hyperthreading enabled for a total of 8 virtual cores</li>
+ <li style="font-size: 0.8em;">Toshiba THNSNHH256GBST SSD</li>
+ <li style="font-size: 0.8em;">Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-2 (2015-04-13) x86_64 GNU/Linux</li>
+ <li style="font-size: 0.8em;">MySQL 5.6.24</li>
+ <li style="font-size: 0.8em;">nginx-1.6.2 + php-fpm for all tests unless indicated otherwise</li>
+ <li style="font-size: 0.8em;">Quiet local 100Mbps network</li>
+ <li style="font-size: 0.8em;">siege benchmark tool run from a separate machine</li>
+ </ul>
+ </section>
+<section id="phpconf1">
+ <p class="p" style="text-align:left;">All versions of PHP compiled locally using gcc-4.9.2 -O2</p>
+<p class="example">configure flags</p>
+ <pre><code class="bash" data-trim>./configure --disable-debug --with-apxs2=/usr/bin/apxs2 \
+ --enable-zend-signals --with-gd \
+ --without-pear --with-jpeg-dir=/usr \
+ --with-png-dir=/usr --with-vpx-dir=/usr \
+ --with-t1lib=/usr --with-freetype-dir=/usr \
+ --enable-exif --enable-gd-native-ttf \
+ --with-zlib --with-mysql=/usr \
+ --with-gmp --with-zlib-dir=/usr \
+ --with-gettext --with-kerberos \
+ --with-imap-ssl --with-mcrypt=/usr/local \
+ --with-iconv --enable-sockets \
+ --with-openssl --with-pspell \
+ --with-pdo-sqlite --with-pdo-mysql=mysqlnd \
+ --enable-soap --enable-xmlreader \
+ --enable-phar=shared --with-xsl \
+ --enable-ftp --enable-cgi \
+ --with-curl=/usr --with-tidy \
+ --with-xmlrpc --enable-mbstring \
+ --enable-sysvsem --enable-sysvshm \
+ --enable-shmop --with-readline \
+ --enable-pcntl --enable-fpm \
+ --enable-intl --enable-zip \
+ --with-imap --with-mysqli=mysqlnd \
+ --enable-calendar --prefix=/usr/local \
+ --with-mysql-sock=/var/run/mysqld/mysqld.sock \
+ --with-config-file-scan-dir=/etc/php7/conf.d \
+ --with-config-file-path=/etc/php7</code></pre>
+ </section>
+<section id="phpconf2">
+<p class="example">php.ini</p>
+ <pre><code class="ini" data-trim>[PHP]
+zend.multibyte=On
+date.timezone="America/Los_Angeles"
+display_startup_errors=On
+zend.enable_gc=Off
+include_path="/usr/local/lib/php"
+default_charset="UTF-8"
+error_reporting=-1
+
+variables_order=GPCS
+sendmail_path=""
+
+max_execution_time=60
+memory_limit=512M
+post_max_size=1024M
+cgi.force_redirect=0
+cgi.fix_pathinfo=1
+
+magic_quotes=0
+magic_quotes_gpc=0
+user_ini.filename=
+realpath_cache_size=2M
+cgi.check_shebang_line=0
+
+max_input_vars=1000
+max_file_uploads=50
+
+zend_extension=opcache.so
+opcache.enable=1
+opcache.memory_consumption=256
+opcache.interned_strings_buffer=8
+opcache.max_accelerated_files=10000
+opcache.revalidate_freq=60
+opcache.fast_shutdown=1
+opcache.enable_cli=1</code></pre>
+ </section>
+<section id="phpconf3">
+<p class="example">php-fpm.d/www.conf</p>
+ <pre><code class="ini" data-trim>[www]
+user = www-data
+group = www-data
+listen = /var/run/php-fpm.sock
+listen.owner = www-data
+listen.group = www-data
+listen.mode = 0660
+
+pm = static
+pm.max_children = 10
+pm.status_path = /status
+ping.path = /ping
+ping.response = pong</code></pre>
+ </section>
+<section id="nginxconf1">
+<p class="example">nginx.conf</p>
+ <pre><code class="nginx" data-trim>user www-data;
+worker_processes 4;
+pid /var/run/nginx.pid;
+
+events {
+ worker_connections 768;
+}
+
+http {
+ sendfile on;
+ tcp_nopush on;
+ tcp_nodelay on;
+ keepalive_timeout 65;
+ types_hash_max_size 2048;
+
+ include /etc/nginx/mime.types;
+ default_type application/octet-stream;
+
+ access_log /var/log/nginx/access.log;
+ error_log /var/log/nginx/error.log;
+
+ gzip on;
+ gzip_disable "msie6";
+
+ include /etc/nginx/conf.d/*.conf;
+ include /etc/nginx/sites-enabled/*;
+}</code></pre>
+ </section>
+<section id="nginxconf2">
+<p class="example">php.conf</p>
+ <pre><code class="nginx" data-trim>location ~ \.php {
+ include fastcgi_params;
+ fastcgi_keep_conn on;
+ fastcgi_index index.php;
+ fastcgi_split_path_info ^(.+\.php)(/.+)$;
+ fastcgi_param PATH_INFO $fastcgi_path_info;
+ fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+ fastcgi_intercept_errors on;
+ fastcgi_pass unix:/var/run/php-fpm.sock;
+}</code></pre>
+<p class="example">hhvm.conf</p>
+ <pre><code data-trim>location ~ \.php$ {
+ include fastcgi_params;
+ fastcgi_keep_conn on;
+ fastcgi_pass unix:/var/run/hhvm/server.sock;
+ fastcgi_index index.php;
+ fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+}</code></pre>
+ </section>
+<section id="nginxconf3">
+<p class="example">sites-enabled/wordpress</p>
+ <pre><code class="nginx" data-trim>server {
+ listen 80;
+ server_name wordpress;
+ root /var/www/wordpress;
+ access_log /var/log/nginx/wordpress-access.log;
+ error_log /var/log/nginx/wordpress-error.log;
+
+ location / {
+ index index.html index.htm index.php;
+ autoindex on;
+ }
+
+ location ~ /\. { return 403; }
+
+ include backend.conf;
+}</code></pre>
+ </section>
+<section id="hhvmconf1">
+ <p class="p" style="font-size:1em;">HipHop VM 3.7.0 (rel) from http://dl.hhvm.com/ubuntu</p>
+<p class="example">server.ini</p>
+ <pre><code class="ini" data-trim>pid = /var/run/hhvm/pid
+hhvm.server.file_socket = /var/run/hhvm/server.sock
+hhvm.server.type = fastcgi
+hhvm.server.default_document = index.php
+hhvm.log.use_log_file = true
+hhvm.log.file = /var/log/hhvm/error.log
+hhvm.repo.central.path = /var/run/hhvm/hhvm.hhbc</code></pre>
+<p class="example">php.ini</p>
+ <pre><code class="ini" data-trim>session.save_handler = files
+session.save_path = /var/lib/php5
+session.gc_maxlifetime = 1440
+
+hhvm.log.level = Warning
+hhvm.log.always_log_unhandled_exceptions = true
+hhvm.log.runtime_error_reporting_level = 8191
+hhvm.mysql.typed_results = false</code></pre>
+ </section> </section>
+ <section>
+ <section id="drupalbench">
+
+<div id="drupalbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/drupalbench.js"></script>
+ </section> </section>
+ <section>
+ <section id="wpbench">
+
+<div id="wpbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may26/wpbench.js"></script>
+ </section>
+<section id="fdo">
+ <p class="p" style="font-size:1.1em;text-align:center;">GCC Feedback-Directed Optimization (FDO)</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1em;">$ make clean
+$ make -j8 prof-gen
+...
+$ sapi/cgi/php-cgi -T 1000 /var/www/wordpress/index.php > /dev/null
+$ make prof-clean
+$ make -j8 prof-use</code></pre>
+ </section>
+<section id="wpbench_fdo">
+
+<div id="wpbench_fdo_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may26/wpbench_fdo.js"></script>
+ </section> </section>
+ <section>
+ <section id="bbbench">
+
+<div id="bbbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/bbbench.js"></script>
+ </section> </section>
+ <section>
+ <section id="mwbench">
+
+<div id="mwbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/mwbench.js"></script>
+ </section> </section>
+ <section>
+ <section id="opencartbench">
+
+<div id="opencartbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/opencartbench.js"></script>
+ </section> </section>
+ <section>
+ <section id="wardrobebench">
+
+<div id="wardrobebench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/wardrobebench.js"></script>
+ </section> </section>
+ <section>
+ <section id="geeklogbench">
+
+<div id="geeklogbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/geeklogbench.js"></script>
+ </section> </section>
+ <section>
+ <section id="magentobench">
+
+<div id="magentobench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/magentobench.js"></script>
+ </section> </section>
+ <section>
+ <section id="traqbench">
+
+<div id="traqbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/traqbench.js"></script>
+ </section>
+<section id="traqfix">
+ <p class="p" style="font-size:1.1em;text-align:left;">Had to fix one line of code in the Avalon database library:</p>
+ <pre><code data-trim style="font-size:1em;">diff --git a/database/model.php b/database/model.php
+index 6c5f7da..c93e726 100644
+--- a/database/model.php
++++ b/database/model.php
+@@ -397,7 +397,7 @@ public function __get($var) {
+ $belongs_to['column'] = $var . '_id';
+ }
+ $model = $belongs_to['model'];
+- return $this->$var = $model::find($belongs_to['foreign_key'], $this->$belongs_to['column']);
++ return $this->$var = $model::find($belongs_to['foreign_key'], $this->{$belongs_to['column']});
+ } else {
+ $val = $this->$var;</code></pre>
+ </section> </section>
+ <section>
+ <section id="cachetbench">
+
+<div id="cachetbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/cachetbench.js"></script>
+ </section> </section>
+ <section>
+ <section id="moodlebench">
+
+<div id="moodlebench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/moodlebench.js"></script>
+ </section> </section>
+ <section>
+ <section id="zencartbench">
+
+<div id="zencartbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/may1/zencartbench.js"></script>
+ </section> </section>
+ <section>
+ <section id="php_contribute">
+ <h2>Help us test!</h2>
+ </section>
+<section id="php_contribute1">
+ <h2>It is really easy!</h2>
+ </section>
+<section id="php_contribute2">
+ <p class="p" style="font-size:1.5em;text-align:left;">Install Vagrant and Virtualbox</p>
+ <p class="p" style="font-size:1.2em;text-align:left;">Then:</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1.2em;">$ git clone https://github.com/rlerdorf/php7dev.git
+
+$ cd php7dev
+
+$ vagrant up
+... (takes a bit - it is downloading 1.5G)
+
+$ vagrant ssh</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">It will NAT, DHCP and also has a fixed address of 192.168.7.7</p>
+ </section>
+<section id="php_contribute3">
+ <p class="p" style="font-size:1.1em;text-align:left;">http://192.168.7.7/ will show you the PHP 7 phpinfo() page</p>
+ <p class="p" style="font-size:1.1em;text-align:left;">Now you have a working Rasmus-approved dev box on your network</p>
+ </section>
+<section id="php_contribute4">
+ <p class="p" style="font-size:1.1em;text-align:left;">Switching PHP versions is trivial</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1.2em;">vagrant@php7dev:~$ newphp 56
+Activating PHP 5.6.6-dev and restarting php-fpm
+
+vagrant@php7dev:~$ newphp 7 debug
+Activating PHP 7.0.0-dev and restarting php-fpm</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">20 pre-compiled versions</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:0.8em;">/usr/local/php53 /usr/local/php54-zts /usr/local/php56-debug-zts
+/usr/local/php53-debug /usr/local/php55 /usr/local/php56-zts
+/usr/local/php53-debug-zts /usr/local/php55-debug /usr/local/php70
+/usr/local/php53-zts /usr/local/php55-debug-zts /usr/local/php70-debug
+/usr/local/php54 /usr/local/php55-zts /usr/local/php70-debug-zts
+/usr/local/php54-debug /usr/local/php56 /usr/local/php70-zts
+/usr/local/php54-debug-zts /usr/local/php56-debug</code></pre>
+ </section>
+<section id="php_contribute5">
+ <p class="p" style="font-size:1.1em;text-align:left;">Build any version</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1.2em;">$ makephp 7
+Build log in /tmp/build.log
+Building PHP 7.0
+configuring...
+compiling...
+installing...
+done
+Building PHP 7.0-debug
+configuring...
+compiling...
+installing...
+done</code></pre>
+ </section>
+<section id="php_contribute5a">
+ <p class="p" style="font-size:1.1em;text-align:left;">or manually</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1.2em;">$ cd php-src
+$ git checkout PHP-5.6
+$ git pull -r
+$ make distclean
+$ ./buildconf -f
+$ ./cn56
+$ make
+$ sudo make install</code></pre>
+ </section>
+<section id="php_contribute6">
+ <div align="" style="font-size: 1.25em; color: ; margin-left: 2em; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/rlerdorf/php7dev" target="">github.com/rlerdorf/php7dev</a></div><br />
+ <p class="p" style="font-size:1.1em;">Report Bugs</p>
+ <p class="p" style="font-size:1.1em;">Useful bug reports, please!</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 }
+ ]
+ });
+ /* 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/taiwan15.xml b/taiwan15.xml
new file mode 100644
index 0000000..269c175
--- /dev/null
+++ b/taiwan15.xml
@@ -0,0 +1,55 @@
+<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"
+>
+
+<notes>
+PHP in 2015 with a focus on performance
+</notes>
+
+<topic>PHP</topic>
+<title>Speeding up the Web with PHP 7</title>
+<event>PHPConf Taiwan 2015</event>
+<location>Taipei</location>
+<date>Oct.9, 2015</date>
+<speaker>Rasmus Lerdorf</speaker>
+<url>http://talks.php.net/taiwan15</url>
+<twitter>@rasmus</twitter>
+
+<slide>slides/intro/titlepage.xml</slide>
+
+<slide>slides/intro/20years.xml</slide>
+<slide>slides/intro/phpannounce.xml</slide>
+<slide>slides/intro/capi.xml</slide>
+
+<slide>slides/intro/php7_2015s.xml</slide>
+<slide>slides/intro/perf2014.xml</slide>
+<slide>slides/intro/php7_perf.xml</slide>
+<slide>slides/intro/benchlies.xml</slide>
+<slide>slides/intro/may1/benchbox.xml</slide>
+<slide>slides/intro/may1/drupalbench.xml</slide>
+<slide>slides/intro/may26/wpbench.xml</slide>
+<slide>slides/intro/may1/bbbench.xml</slide>
+<slide>slides/intro/may1/mwbench.xml</slide>
+<slide>slides/intro/may1/opencartbench.xml</slide>
+<slide>slides/intro/may1/wardrobebench.xml</slide>
+<slide>slides/intro/may1/geeklogbench.xml</slide>
+<slide>slides/intro/may1/magentobench.xml</slide>
+<slide>slides/intro/may1/traqbench.xml</slide>
+<slide>slides/intro/may1/cachetbench.xml</slide>
+<slide>slides/intro/may1/moodlebench.xml</slide>
+<slide>slides/intro/may1/zencartbench.xml</slide>
+
+<slide>slides/intro/php_contribute.xml</slide>
+
+</presentation>