com presentations: Wepay talk: wepay14.html wepay14.xml

[email protected] (Rasmus Lerdorf)
Newsgroups php.pres
Message-ID <[email protected]> 
Commit:    04e21faa6cc7a22757976ab0507d43141dc3dc6e
Author:    Rasmus Lerdorf <[email protected]>         Thu, 29 May 2014 09:28:56 -0700
Parents:   e700d6fb993991ec63426f596895f4186e581e5a
Branches:  master

Link:       http://git.php.net/?p=presentations.git;a=commitdiff;h=04e21faa6cc7a22757976ab0507d43141dc3dc6e

Log:
Wepay talk

Changed paths:
  A  wepay14.html
  A  wepay14.xml
diff_04e21faa6cc7a22757976ab0507d43141dc3dc6e.txt (text/plain, 12.4 KB) 
diff --git a/wepay14.html b/wepay14.html
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+++ b/wepay14.html
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+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>PHP</title>
+
+		<meta name="description" content="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">
+
+		<link rel="stylesheet" href="/reveal.js/css/reveal.min.css">
+		<link rel="stylesheet" href="/samdark.css" id="theme">
+
+		<!-- For syntax highlighting -->
+		<link rel="stylesheet" href="/styles/github.css">
+
+		<!-- If the query includes 'print-pdf', include the PDF print sheet -->
+		<script>
+			if( window.location.search.match( /print-pdf/gi ) ) {
+				var link = document.createElement( 'link' );
+				link.rel = 'stylesheet';
+				link.type = 'text/css';
+				link.href = '/reveal.js/css/print/pdf.css';
+				document.getElementsByTagName( 'head' )[0].appendChild( link );
+			}
+		</script>
+
+		<!--[if lt IE 9]>
+		<script src="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>PHP</h1>
+					<h3>Wepay</h3>
+					<h3>Palo Alto</h3>
+					<h3>May 29, 2014</h3>
+					<a href="http://talks.php.net/wepay14">http://talks.php.net/wepay14</a><br><br>
+					<p>Rasmus Lerdorf<br>
+					<small><a href="http://twitter.com/@rasmus">@rasmus</a></small>
+					</p>
+				</section>
+					<section>
+		<section id="performance">
+		<h2 margin-bottom="2em">PHP 5.5</h2><br>
+		<h3 class="p">Performance Improvements</h3>
+		<ul>
+			<li>Nested calls</li>
+			<li>Call stack pre-allocated by compiler</li>
+			<li>Bundled opcode cache</li>
+		</ul>
+		</section>
+<section id="generators">
+		<h4 class="p">✔ Generators</h4>
+		<pre><code>function xrange($start, $end) {
+    for ($i = $start; $i &lt;= $end; $i ++) {
+        yield $i;
+    }
+}
+foreach (xrange(0, 5) as $i) {
+    echo $i, &quot;\n&quot;;
+}</code></pre>
+		</section>
+<section id="coroutines">
+		<h4 class="p">✔ Coroutines</h4>
+		<pre><code>function logger($fileName) {
+    $fileHandle = fopen($fileName, 'a');
+    while (true) {
+        fwrite($fileHandle, yield . &quot;\n&quot;);
+    }
+}
+
+$logger = logger(__DIR__ . '/log');
+$logger-&gt;send('Foo');
+$logger-&gt;send('Bar');</code></pre>
+		<p class="p">For an advanced explanation of coroutines, read this article by Nikita Popov</p>
+		<div align="" style="font-size: ; color: ; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="http://nikic.github.io/2012/12/22/Cooperative-multitasking-using-coroutines-in-PHP.html" target="">Cooperative multitasking using coroutines</a></div><br />
+		</section>
+<section id="finally">
+		<h4 class="p">✔ finally</h4>
+		<pre><code>$db = mysqli_connect();
+try {
+   call_some_function($db);
+} finally {
+   mysqli_close($db);
+}</code></pre>
+		</section>
+<section id="foreachlist">
+		<h4 class="p">✔ list() in foreach</h4>
+		<pre><code>$names = [ ['John','Smith'], ['Fred','Johnson'] ];
+foreach($names as list($first,$last)) { 
+    echo $first,$last; 
+}</code></pre>
+		</section>
+<section id="constarray">
+		<h4 class="p">✔ Const array/string Dereferencing</h4>
+		<pre><code>echo array(1, 2, 3)[0]; //output 1
+echo &quot;foobar&quot;[3]; //output b
+echo [1,3,4][2]; //output 4</code></pre>
+		</section>
+<section id="others">
+		<h4 class="p">✔ empty() support for functions/expressions</h4>
+		<h4 class="p">✔ curl upload functionality rewritten</h4>
+		<h4 class="p">✔ Simplified password hashing API</h4>
+		<pre><code>// Hash
+$hash = password_hash(&quot;super secret&quot;,PASSWORD_BCRYPT);
+
+// To validate $pwd against the stored hash
+if (password_verify($pwd, $hash)) {
+    echo 'Password is valid!';
+} else {
+    echo 'Invalid password.';
+}</code></pre>
+		</section>
+<section id="php55_done">
+		<div align="" style="font-size: ; color: ; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="http://php.net/migration55" target="">php.net/migration55</a></div><br />
+		</section>	</section>
+	<section>
+		<section id="php56">
+		<h2 margin-bottom="2em">PHP 5.6</h2><br>
+		<h4 class="p">✔ Variadic functions</h4>
+		<pre><code>class MySQL implements DB {
+    public function query($query, ...$params) {
+        $stmt = $this-&gt;pdo-&gt;prepare($query);
+        $stmt-&gt;execute($params);
+        return $stmt;
+    }
+}
+
+$q = 'SELECT * FROM users WHERE id = ?';
+$user = $db-&gt;query($q, $userID)-&gt;fetch();</code></pre>
+		</section>
+<section id="php56unpack">
+		<h4 class="p">✔ Argument Unpacking</h4>
+		<pre><code>// A better call_user_func_args
+$args1 = [1, 2, 3];
+$args2 = [4, 5, 6];
+test(...$args1, ...$args2); // [1, 2, 3, 4, 5, 6]
+test(1, 2, 3, ...$args2);   // [1, 2, 3, 4, 5, 6]
+test(...$args1, 4, 5, 6);   // Fatal error: Cannot use positional argument after argument unpacking</code></pre>
+		</section>
+<section id="php56constscalar">
+		<h4 class="p">✔ Constant scalar expressions</h4>
+		<pre><code>class Foo {
+    const FOO = 1 + 1;
+    const BAR = 1 &lt;&lt; 1;
+    const GREETING = &quot;HELLO&quot;;
+    const BAZ = self::GREETING.&quot; WORLD!&quot;
+}</code></pre>
+		</section>
+<section id="php56pow">
+		<h4 class="p">✔ Add right-associative power operator **</h4>
+		<pre><code>echo 2 ** 3 ** 2; // 512 (not 64)
+echo -3 ** 2; // -9 (not 9)
+echo 1 - 3 ** 2; // -8
+echo ~3 ** 2; // -10 (not 16)</code></pre>
+		</section>
+<section id="php56opoverload">
+		<h4 class="p">✔ Internal operator overloading for internal features like GMP</h4>
+		<pre><code>echo 2**512;
+echo &quot;\n&quot;;
+$n = gmp_init(2);
+echo $n**512;</code></pre>
+		<pre><code>1.3407807929943E+154
+13407807929942597099574024998205846127479365820592393377723561443721764030073546976801874298166903427690031858186486050853753882811946569946433649006084096
+		</code></pre>		</section>
+<section id="php56use">
+		<h4 class="p">✔ use function and use const namespace imports</h4>
+		<pre><code>include 'template.inc';
+include 'db.inc';
+use function template\header, template\footer, db\query;
+
+header('My Page');
+query('select * from stuff');
+footer();</code></pre>
+		</section>
+<section id="php56_0">
+		<h4 class="p">✔ default_charset ini now applies to internal funcs</h4>
+		<h4 class="p">✔ SSL Peer verification by default</h4>
+		<h4 class="p">✔ openssl certificate fingerprints</h4>
+		<h4 class="p">✔ SAN x509 ext matching when verifying host names</h4>
+		<h4 class="p">✔ automatic DoS prevention of TLS renegotiation attacks</h4>
+		<h4 class="p">✔ and many more openssl-related options</h4>
+		</section>
+<section id="php56_1">
+		<h4 class="p">✔ Asynchronous PostgreSQL database connections</h4>
+		<h4 class="p">✔ Non-blocking PostgreSQL queries</h4>
+		<h4 class="p">✔ New phpdbg SAPI</h4>
+		<h4 class="p">✔ Support for > 2GB file uploads</h4>
+		<h4 class="p">✔ The php://input stream is now re-usable</h4>
+		<h4 class="p">✔ Added hash_compare() for timing attack safe string comparison</h4>
+		<h4 class="p">✔ Added gost-crypto (CryptoPro S-box) hash algorithm</h4>
+		<h4 class="p">✔ FPM workers can now change their apparmor profile</h4>
+		<h4 class="p">✔ OCI8 Improvements</h4>
+		</section>
+<section id="php56_done">
+		<div align="" style="font-size: ; color: ; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="http://php.net/migration56" target="">php.net/migration56</a></div><br />
+		</section>	</section>
+	<section>
+		<h2 margin-bottom="2em">Deploying Web Apps</h2><br>
+		<h3 class="p">Are your deploys atomic?</h3>
+		<h3 class="p">Are you sure?</h3>
+		<h4 class="p">What happens to a request that is currently executing when you deploy?</h4>
+	</section>
+	<section>
+		<h2 margin-bottom="2em">Deploying Web Apps</h2><br>
+		<img src="/presentations/slides/intro/dep1.png" width="642" height="300">
+	</section>
+	<section>
+		<h2 margin-bottom="2em">Deploying Web Apps</h2><br>
+		<h4 class="p">✔ Don't copy files into current document root</h4>
+		<h4 class="p">✔ Let existing requests finish on old code</h4>
+		<h4 class="p">✔ New requests start on new code</h4>
+		<h4 class="p">✔ Avoid clearing your opcode cache</h4>
+		<h4 class="p">✔ Minimal impact on production traffic</h4>
+	</section>
+	<section>
+		<h2 margin-bottom="2em">Deploying Web Apps</h2><br>
+		<img src="/presentations/slides/intro/dep2.png" width="680" height="428">
+	</section>
+	<section>
+		<h2 margin-bottom="2em">Deploying Web Apps</h2><br>
+		<img src="/presentations/slides/intro/dep3.png" width="680" height="428">
+	</section>
+	<section>
+		<h2 margin-bottom="2em">Deploying Web Apps</h2><br>
+		<h4 class="p">2 Document Root directories</h4>
+		<h4 class="p">Symlink /var/www/site toggles between them</h4>
+		<h4 class="p">realpath() symlink at the web server level</h4>
+		<h4 class="p">Set Document Root to symlink realpath</h4>
+		<h4 class="p">Never hardcode the document root in code</h4>
+	</section>
+	<section>
+		<h2 margin-bottom="2em">Deploying Web Apps</h2><br>
+		<h3 class="p">Apache</h3>
+		<h4 class="p">http://github.com/etsy/mod_realdoc</h4>
+		<h3 class="p">nginx</h3>
+		<h4 class="p">You can use $realpath_root</h4>
+		<p class="p">eg. fastcgi_param DOCUMENT_ROOT $realpath_root;</p>
+		<h3 class="p">PHP</h3>
+		<h4 class="p">http://github.com/etsy/incpath</h4>
+	</section>
+	<section>
+		<div align="" style="font-size: ; color: ; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="http://codeascraft.com/2013/07/01/atomic-deploys-at-etsy/" target="">codeascraft.com/2013/07/01/atomic-deploys-at-etsy/</a></div><br />
+	</section>
+			</div>
+
+		</div>
+
+		<script src="/reveal.js/lib/js/head.min.js"></script>
+		<script src="/reveal.js/js/reveal.min.js"></script>
+
+		<script>
+
+			// Full list of configuration options available here:
+			// https://github.com/hakimel/reveal.js#configuration
+			Reveal.initialize({
+				controls: true,
+				progress: true,
+				history: true,
+				center: true,
+				backgroundTransition: 'none',
+
+				theme: Reveal.getQueryHash().theme, // available themes are in /css/theme
+				transition: Reveal.getQueryHash().transition || 'linear', // default/cube/page/concave/zoom/linear/fade/none
+				transitionSpeed: 'fast',
+
+				// Parallax scrolling
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+				// parallaxBackgroundSize: '2100px 900px',
+
+				// Optional libraries used to extend on reveal.js
+				dependencies: [
+					{ src: '/reveal.js/lib/js/classList.js', condition: function() { return !document.body.classList; } },
+					{ src: '/highlight.pack.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } },
+					{ src: '/reveal.js/plugin/zoom-js/zoom.js', async: true, callback: function() { return !!document.body.classList; } },
+					{ src: '/reveal.js/plugin/notes/notes.js', async: true, condition: function() { return !!document.body.classList; } }
+				]
+			});
+
+		</script>
+
+	</body>
+</html>
diff --git a/wepay14.xml b/wepay14.xml
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index 0000000..3ed5c4e
--- /dev/null
+++ b/wepay14.xml
@@ -0,0 +1,39 @@
+<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>PHP</title>
+<event>Wepay</event>
+<location>Palo Alto</location>
+<date>May 29, 2014</date>
+<speaker>Rasmus Lerdorf</speaker>
+<url>http://talks.php.net/wepay14</url>
+<twitter>@rasmus</twitter>
+
+<slide>slides/intro/titlepage.xml</slide>
+
+<slide>slides/intro/php55.xml</slide>
+<slide>slides/intro/php56.xml</slide>
+
+<slide>slides/intro/atomic1.xml</slide>
+<slide>slides/intro/atomic3a.xml</slide>
+<slide>slides/intro/atomic2.xml</slide>
+<slide>slides/intro/atomic3b.xml</slide>
+<slide>slides/intro/atomic3c.xml</slide>
+<slide>slides/intro/atomic3.xml</slide>
+<slide>slides/intro/atomic4.xml</slide>
+<slide>slides/intro/codeascraft.xml</slide>
+
+</presentation>
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