com presentations: phpday closing keynote: phpday19.html phpday19.xml slides/intro/carl_centipede.jpg slides/intro/journey2 .xml
[email protected] (Rasmus Lerdorf) Sat, 11 May 2019 08:43:08 +0000
| Newsgroups | php.pres |
|---|---|
| Message-ID | <[email protected]> |
Commit: 1f4fea82933992b13fc08c02881582bf396adb44 Author: Rasmus Lerdorf <[email protected]> Sat, 11 May 2019 10:42:36 +0200 Parents: db6f4bc34023693c1a403b4cc2d0cacbed585faa Branches: master Link: http://git.php.net/?p=presentations.git;a=commitdiff;h=1f4fea82933992b13fc08c02881582bf396adb44 Log: phpday closing keynote Changed paths: A phpday19.html A phpday19.xml A slides/intro/carl_centipede.jpg M slides/intro/journey2.xml
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+<!doctype html>
+<html lang="en">
+
+ <head>
+ <meta charset="utf-8">
+
+ <title>25 Years of PHP</title>
+
+ <meta name="description" content="25 Years of 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>25 Years of PHP</h1>
+ <h3>phpDay</h3>
+ <h3>Dublin</h3>
+ <h3>May 11, 2019</h3>
+ <a href="http://talks.php.net/phpday19">http://talks.php.net/phpday19</a><br><br>
+ <p>Rasmus Lerdorf<br>
+ <small><a href="http://twitter.com/@rasmus">@rasmus</a></small>
+ </p>
+ <aside class="notes">
+ </aside>
+ </section>
+ <section data-background-color="#000000">
+ <section id="s">
+ <img src="/presentations/slides/intro/greenland_map.png" align="center" width="" height="">
+ </section>
+<section id="s1">
+ <img src="/presentations/slides/intro/greenland_edge.jpg" align="center" width="" height="">
+ </section>
+<section id="s2">
+ <img src="/presentations/slides/intro/greenland_boots.jpg" align="center" width="" height="">
+ </section>
+<section id="s3">
+ <img src="/presentations/slides/intro/greenland_box.jpg" align="center" width="" height="">
+ </section>
+<section id="s4">
+ <img src="/presentations/slides/intro/greenland_dogsled.jpg" align="center" width="" height="">
+ </section>
+<section id="s5">
+ <img src="/presentations/slides/intro/greenland_house.jpg" align="center" width="" height="">
+ </section>
+<section id="s6">
+ <img src="/presentations/slides/intro/greenland_summer.jpg" align="center" width="" height="">
+ </section>
+<section id="s7">
+ <img src="/presentations/slides/intro/greenland_tech1.jpg" align="center" width="" height="">
+ </section>
+<section id="s8">
+ <img src="/presentations/slides/intro/greenland_tech2.jpg" align="center" width="" height="">
+ </section>
+<section id="s9">
+ <img src="/presentations/slides/intro/greenland_tech3.jpg" align="center" width="" height="">
+ </section> </section>
+ <section>
+ <section id="hist_80s">
+ <h1 style="text-align:center;text-transform:none">1980s</h1>
+ <img src="/presentations/slides/intro/timex.jpg" align="center" width="" height="">
+ </section>
+<section id="hist_80s_1">
+ <img src="/presentations/slides/intro/vic20.jpg" align="center" width="" height="">
+ </section>
+<section id="hist_80s_2">
+ <img src="/presentations/slides/intro/hayes.jpg" align="center" width="" height="">
+ </section>
+<section id="hist_80s_3">
+ <img src="/presentations/slides/intro/Zmodem.gif" align="center" width="" height="">
+ </section> </section>
+ <section>
+ <section id="hist_90s">
+ <h1 style="text-align:center;text-transform:none">1990s</h1>
+ <img src="/presentations/slides/intro/gopher.gif" align="center" width="" height="">
+ </section>
+<section id="hist_90s_1">
+ <img src="/presentations/slides/intro/mosaic.jpg" align="center" width="" height="">
+ </section> </section>
+ <section>
+ <section id="hist_1993">
+ <h3 class="p" style="text-align:center;">1993</h3>
+ <pre><code class="C" data-trim style="font-size:0.8em;" >#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+
+#define ishex(x) (((x) >= '0' && (x) <= '9') || ((x) >= 'a' && \
+ (x) <= 'f') || ((x) >= 'A' && (x) <= 'F'))
+
+int htoi(char *s) {
+ int value;
+ char c;
+
+ c = s[0];
+ if(isupper(c)) c = tolower(c);
+ value=(c >= '0' && c <= '9' ? c - '0' : c - 'a' + 10) * 16;
+
+ c = s[1];
+ if(isupper(c)) c = tolower(c);
+ value += c >= '0' && c <= '9' ? c - '0' : c - 'a' + 10;
+
+ return(value);
+}
+
+void main(int argc, char *argv[]) {
+ char *params, *data, *dest, *s, *tmp;
+ char *name, *age;
+
+ puts("Content-type: text/html\r\n");
+ puts("<HTML><HEAD><TITLE>Form Example</TITLE></HEAD>");
+ puts("<BODY><H1>My Example Form</H1>");
+ puts("<FORM action=\"form.cgi\" method=\"GET\">");
+ puts("Name: <INPUT type=\"text\" name=\"name\">");
+ puts("Age: <INPUT type=\"text\" name=\"age\">");
+ puts("<BR><INPUT type=\"submit\">");
+ puts("</FORM>");
+
+ data = getenv("QUERY_STRING");
+ if(data && *data) {
+ params = data; dest = data;
+ while(*data) {
+ if(*data=='+') *dest=' ';
+ else if(*data == '%' && ishex(*(data+1))&&ishex(*(data+2))) {
+ *dest = (char) htoi(data + 1);
+ data+=2;
+ } else *dest = *data;
+ data++;
+ dest++;
+ }
+ *dest = '\0';
+ s = strtok(params,"&");
+ do {
+ tmp = strchr(s,'=');
+ if(tmp) {
+ *tmp = '\0';
+ if(!strcmp(s,"name")) name = tmp+1;
+ else if(!strcmp(s,"age")) age = tmp+1;
+ }
+ } while(s=strtok(NULL,"&"));
+
+ printf("Hi %s, you are %s years old\n",name,age);
+ }
+ puts("</BODY></HTML>");
+}</code></pre>
+ </section> </section>
+ <section>
+ <section id="hist_1993_2">
+ <h3 class="p" style="text-align:center;">1993</h3>
+ <pre><code class="Perl" data-trim >use CGI qw(:standard);
+print header;
+print start_html('Form Example'),
+ h1('My Example Form'),
+ start_form,
+ "Name: ", textfield('name'),
+ p,
+ "Age: ", textfield('age'),
+ p,
+ submit,
+ end_form;
+if(param()) {
+ print "Hi ",em(param('name')),
+ "You are ",em(param('age')),
+ " years old";
+}
+print end_html;</code></pre>
+ </section> </section>
+ <section>
+ <section id="hist_1994">
+ <h3 class="p" style="text-align:center;">1994-1995</h3>
+ <pre><code class="PHP" data-trim ><html><head><title>Form Example</title></head>
+<body><h1>My Example Form</h1>
+<form action="form.phtml" method="POST">
+Name: <input type="text" name="name">
+Age: <input type="text" name="age">
+<br><input type="submit">
+</form>
+<?if($name):?>
+Hi <?echo $name?>, you are <?echo $age?> years old
+<?endif?>
+</body></html></code></pre>
+ </section> </section>
+ <section>
+ <h2>C API for the Web</h2>
+ <pre><code class="C" data-trim >void Cos(void) {
+ Stack *s;
+ char temp[64];
+
+ s = Pop();
+ if(!s) {
+ Error("Stack error in cos");
+ return;
+ }
+ sprintf(temp,"%f",cos(s->douval));
+ Push(temp,DNUMBER);
+}</code></pre>
+ <h4 class="p">And you could then use it like this:</h4>
+ <pre><code class="nohighlight" data-trim ><html><head><title>Cos Example</title></head>
+<body><h1>Cos Example</h1>
+<?echo Cos($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>
+ <h3 class="p">Focus on the Ecosystem</h3>
+ <ul>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">LAMP wasn't an accident</li>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Robustness, Performance and Security</li>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;"><font color="ff2233">♥</font> shared hosting ISPs</li>
+ </ul>
+<br/>
+ <h3 class="p">Scale</h3>
+ <ul>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Scaling up is expected</li>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Scaling down is surprisingly hard</li>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Doing both is rocket science</li>
+ </ul>
+ </section>
+ <section>
+ <h3 class="p">Performance</h3>
+ <ul>
+ <li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">mod_php</li>
+ <li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">shared-nothing perfect sandbox model</li>
+ </ul>
+ <h3 class="p">Robustness</h3>
+ <ul>
+ <li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">SQL LIMIT clause</li>
+ <li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">Promote Prefork shared-nothing model</li>
+ </ul>
+ <h3 class="p">Security</h3>
+ <ul>
+ <li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">max_execution_time</li>
+ <li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">memory_limit</li>
+ <li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">safe mode</li>
+ </ul>
+ </section>
+ <section>
+ <section id="omg">
+ <h3 class="p">What was he thinking?</h3>
+ <ul>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Case insensitive function names?</li>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Naming inconsistencies?</li>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">What's with the $ signs?</li>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Globals?</li>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">register_globals?</li>
+ <li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">magic_quotes?</li>
+ </ul>
+ </section>
+<section id="omg1">
+ <h3 class="p">OMGWTFBBQ?</h3>
+ <pre><code data-trim style="font-size:1.6em;" >array_search($needle, $haystack);
+strstr($haystack, $needle);
+in_array($needle, $haystack);
+substr_count($haystack, $needle);
+array_key_exists($needle, $haystack);
+strchr($haystack, $needle);</code></pre>
+ </section> </section>
+ <section>
+ <section id="php73">
+ <h1 style="text-align:center;">PHP 7.3</h1>
+ </section>
+<section id="php73_heredoc">
+ <p class="p" style="font-size:1.1em;text-align:left;">Flexible Heredoc</p>
+ <pre><code data-trim style="font-size:1.1em;" >class foo {
+ public $bar = <<<EOT
+ bar
+ EOT;
+}</code></pre>
+ </section>
+<section id="php73_continue">
+ <p class="p" style="font-size:1.1em;text-align:left;">Continue in Switch</p>
+ <pre><code data-trim style="font-size:1.1em;" >while ($foo) {
+ switch ($bar) {
+ case "baz":
+ continue;
+ }
+}</code></pre>
+ <pre><code class="nohighlight" data-trim style="font-size:1.1em;" >Warning: "continue" targeting switch is equivalent to "break".
+ Did you mean to use "continue 2"?</code></pre>
+ </section>
+<section id="php73_listrefs">
+ <p class="p" style="font-size:1.1em;text-align:left;">List References</p>
+ <pre><code data-trim style="font-size:1.1em;" >$array = [1, 2];
+list($a, &$b) = $array;
+// or
+[$a, &$b] = $array;</code></pre>
+ </section>
+<section id="php73_commas">
+ <p class="p" style="font-size:1.1em;text-align:left;">Trailing comma allowed in function calls</p>
+ <pre><code data-trim style="font-size:1.1em;" >$newArray = array_merge(
+ $arrayOne,
+ $arrayTwo,
+ ['foo', 'bar'],
+);
+
+# Parse error
+function bar($a, $b,) { }
+
+# Parse error
+foo(,);
+
+# Parse error
+foo('function', 'bar',,);
+
+# Also parse error
+foo(, 'function', 'bar');</code></pre>
+ </section>
+<section id="php73_hrtime">
+ <p class="p" style="font-size:1.1em;text-align:left;">New Monotonic Timer function</p>
+ <pre><code data-trim style="font-size:1.0em;" >php > print_r(hrtime());
+Array
+(
+ [0] => 2320165 // seconds
+ [1] => 979969517 // nanoseconds
+)
+php > print_r(hrtime(true));
+2320183081647424</code></pre>
+ </section>
+<section id="php73_fpm_status">
+ <p class="p" style="font-size:1.1em;text-align:left;">New fpm_get_status() function</p>
+ <pre><code data-trim style="font-size:1.1em;" >print_r(fpm_get_status());
+Array (
+ [pool] => www
+ [process-manager] => static
+ [start-time] => 1536934549
+ [start-since] => 26
+ [accepted-conn] => 20039
+ [listen-queue] => 0
+ [max-listen-queue] => 0
+ [listen-queue-len] => 0
+ [idle-processes] => 0
+ [active-processes] => 47
+ [total-processes] => 47
+ [max-active-processes] => 514
+ [max-children-reached] => 0
+ [slow-requests] => 0
+ [procs] => Array (
+ [0] => Array (
+ [pid] => 10819
+ [state] => Running
+ [start-time] => 1536934549
+ [start-since] => 26
+ [requests] => 2001
+ [request-duration] => 8108
+ [request-method] => GET
+ [request-uri] => /index.php
+ [query-string] => p=1
+ [request-length] => 0
+ [user] => -
+ [script] => /var/www/wordpress/index.php
+ [last-request-cpu] => 0
+ [last-request-memory] => 0
+ )
+ ...</code></pre>
+ </section>
+<section id="php73_iscountable">
+ <p class="p" style="font-size:1.1em;text-align:left;">is_countable()</p>
+ <pre><code data-trim style="font-size:1.1em;" >if (is_array($foo) || $foo instanceof Countable) {
+ // $foo is countable
+}
+
+if (is_countable($foo)) {
+ // $foo is countable
+}</code></pre>
+ </section>
+<section id="php73_array_key">
+ <p class="p" style="font-size:1.1em;text-align:left;">array_key_first()/array_key_last()</p>
+ <pre><code data-trim style="font-size:1.1em;" >$a = ['abc'=>'First', 'def'=>'Second', 'ghi'=>'Third'];
+echo array_key_first($a);
+// abc
+echo array_key_last($a);
+// ghi</code></pre>
+ </section>
+<section id="php73_opt">
+ <p class="p" style="font-size:1.6em;text-align:left;">More DCE and SCCP optimizations</p>
+ </section>
+<section id="php73misc">
+ <p class="p" style="font-size:1.1em;text-align:left;">Other changes</p>
+ <ul>
+ <li style="font-size: 0.8em;margin-left: -1em;">Upgraded from PCRE to PCRE2</li>
+ <li style="font-size: 0.8em;margin-left: -1em;">getallheaders() now available in php-fpm</li>
+ <li style="font-size: 0.8em;margin-left: -1em;">full case-mapping for mbstring</li>
+ <li style="font-size: 0.8em;margin-left: -1em;">preg_quote() now also escapes '#'</li>
+ <li style="font-size: 0.8em;margin-left: -1em;">new gmp functions: gmp_binomial, gmp_lcm, gmp_perfect_power, gmp_kronecker</li>
+ <li style="font-size: 0.8em;margin-left: -1em;">new JsonException</li>
+ <li style="font-size: 0.8em;margin-left: -1em;">default ftp transfer mode is now binary</li>
+ </ul>
+ </section>
+<section id="php73cleanups">
+ <p class="p" style="font-size:1.1em;text-align:left;">Things that may break your code</p>
+ <ul>
+ <li style="font-size: 0.8em;margin-left: -1em;">PCRE2 differences (should be rare)</li>
+ <li style="font-size: 0.8em;margin-left: -1em;">ODBCRouter and Birdstep support have been removed</li>
+ <li style="font-size: 0.8em;margin-left: -1em;">Various deprecations - see UPGRADING</li>
+ </ul>
+ <p class="p" style="font-size:1.1em;text-align:left;">Full details are at:</p>
+ <div align="" style="font-size: 0.8em; color: ; text-align: ; margin-left: -1em; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://php.net/migration73" target="">https://php.net/migration73</a></div>
+ <p class="p" style="font-size:1.1em;text-align:left;">And for extension authors:</p>
+ <div align="" style="font-size: 0.8em; color: ; text-align: ; margin-left: -1em; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/php/php-src/blob/PHP-7.3/UPGRADING.INTERNALS" target="">https://github.com/php/php-src/blob/PHP-7.3/UPGRADING.INTERNALS</a></div>
+ </section> </section>
+ <section>
+ <section id="dce">
+ <p class="p" style="font-size:2em;text-align:center;">Dead Code Elimination (DCE)</p>
+ <p class="p" style="font-size:1.5em;text-align:center;">Escape Analysis</p>
+ <p class="p" style="font-size:1.4em;text-align:center;">Sparse Conditional Constant Propagation</p>
+ </section>
+<section id="dce0">
+ <pre><code class="result nohighlight" data-trim style="font-size:0.9em;" >php -d opcache.optimization_level=-1 -d opcache.opt_debug_level=0x20000 script</code></pre>
+ <pre><code data-trim style="font-size:1.05em;" >function fn() {
+ $a = 1;
+ return 0;
+}</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">PHP 7.1</p>
+ <pre><code class="result nohighlight" data-trim style="font-size:1em;" >fn: (lines=2, args=0, vars=1, tmps=0)
+L0: ASSIGN CV0($a) int(1)
+L1: RETURN int(0)</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">PHP 7.2/7.3</p>
+ <pre><code class="result nohighlight" data-trim style="font-size:1em;" >fn: (lines=1, args=0, vars=0, tmps=0)
+L0: RETURN int(0)</code></pre>
+ </section>
+<section id="dce1">
+ <pre><code data-trim style="font-size:1.05em;" >function foo(string $s1, string $s2, string $s3, string $s4) {
+ $x = ($s1 . $s2) . ($s3 . $s4);
+ $x = 0;
+ return $x;
+}</code></pre>
+ <pre><code class="result nohighlight" data-trim style="font-size:1em;" >PHP 7.1 PHP 7.2/7.3
+foo: (lines=10, args=4, vars=5, tmps=3) foo: (lines=5, args=4, vars=4, tmps=0)
+L0: CV0($s1) = RECV 1 L0: CV0($s1) = RECV 1
+L1: CV1($s2) = RECV 2 L1: CV1($s2) = RECV 2
+L2: CV2($s3) = RECV 3 L2: CV2($s3) = RECV 3
+L3: CV3($s4) = RECV 4 L3: CV3($s4) = RECV 4
+L4: T6 = CONCAT CV0($s1) CV1($s2) L4: RETURN int(0)
+L5: T7 = CONCAT CV2($s3) CV3($s4)
+L6: T5 = CONCAT T6 T7
+L7: ASSIGN CV4($x) T5
+L8: ASSIGN CV4($x) int(0)
+L9: RETURN CV4($x)</code></pre>
+ </section>
+<section id="dce2">
+ <p class="p" style="font-size:1.1em;text-align:left;">Try to trick it</p>
+ <pre><code data-trim style="font-size:1.05em;" >function foo($a) {
+ $b = $a += 3;
+ return $a;
+}</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">PHP 7.2/7.3</p>
+ <pre><code class="result nohighlight" data-trim style="font-size:1em;" >foo: (lines=3, args=1, vars=1, tmps=1)
+L0: CV0($a) = RECV 1
+L1: ASSIGN_ADD CV0($a) int(3)
+L2: RETURN CV0($a)</code></pre>
+ </section>
+<section id="dce3">
+ <p class="p" style="font-size:1.1em;text-align:left;">But...</p>
+ <pre><code data-trim style="font-size:1.05em;" >function foo(int $x, int $y) {
+ $a = [$x];
+ $a[1] = $y;
+ $a = $y;
+ return $a;
+}</code></pre>
+ <pre><code class="result nohighlight" data-trim style="font-size:1em;" >PHP 7.2 PHP 7.3
+foo: (lines=7, args=2, vars=3, tmps=1) foo: (lines=4, args=2, vars=3, tmps=0)
+L0: CV0($x) = RECV 1 L0: CV0($x) = RECV 1
+L1: CV1($y) = RECV 2 L1: CV1($y) = RECV 2
+L2: CV2($a) = INIT_ARRAY 1 CV0($x) NEXT L2: CV2($a) = QM_ASSIGN CV1($y)
+L3: ASSIGN_DIM CV2($a) int(1) L3: RETURN CV2($a)
+L4: OP_DATA CV1($y)
+L5: ASSIGN CV2($a) CV1($y)
+L6: RETURN CV2($a)</code></pre>
+ </section>
+<section id="dce4">
+ <pre><code data-trim style="font-size:1.05em;" >class A { }
+function foo(int $x) {
+ $a = new A;
+ $a->foo = $x;
+ return $x;
+}</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">PHP 7.3</p>
+ <pre><code class="result nohighlight" data-trim style="font-size:1.05em;" >foo: (lines=2, args=1, vars=1, tmps=0)
+L0: CV0($x) = RECV 1
+L1: RETURN CV0($x)</code></pre>
+ </section>
+<section id="dce5">
+ <pre><code data-trim style="font-size:1.05em;" >class A {
+ function __destruct() {}
+}
+function foo(int $x) {
+ $a = new A;
+ $a->foo = $x;
+ return $x;
+}</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">PHP 7.3</p>
+ <pre><code class="result nohighlight" data-trim style="font-size:1.05em;" >foo: (lines=7, args=1, vars=2, tmps=1)
+L0: CV0($x) = RECV 1
+L1: V2 = NEW 0 string("A")
+L2: DO_FCALL
+L3: CV1($a) = QM_ASSIGN V2
+L4: ASSIGN_OBJ CV1($a) string("foo")
+L5: OP_DATA CV0($x)
+L6: RETURN CV0($x)</code></pre>
+ </section>
+<section id="dce6">
+ <pre><code data-trim style="font-size:1.05em;" >function foo(int $x) {
+ if ($x) {
+ $a = [0,1];
+ } else {
+ $a = [0,2];
+ }
+ return $a[0];
+}</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">PHP 7.3</p>
+ <pre><code class="result nohighlight" data-trim style="font-size:1.05em;" >foo: (lines=2, args=1, vars=1, tmps=0)
+L0: CV0($x) = RECV 1
+L1: RETURN int(0)</code></pre>
+ </section>
+<section id="dce7">
+ <pre><code data-trim style="font-size:1.05em;" >function foo() {
+ $o = new stdClass();
+ $o->foo = 0;
+ $i = 1;
+ $c = $i < 2;
+ if ($c) {
+ $k = 2 * $i;
+ $o->foo = $i;
+ echo $o->foo;
+ }
+ $o->foo += 2;
+ $o->foo++;
+ return $o->foo;
+}</code></pre>
+ <p class="p" style="font-size:1.1em;text-align:left;">PHP 7.3</p>
+ <pre><code class="result nohighlight" data-trim style="font-size:1.05em;" >foo: (lines=2, args=0, vars=0, tmps=0)
+L0: ECHO int(1)
+L1: RETURN int(4)</code></pre>
+ </section> </section>
+ <section>
+ <section id="wpbench">
+
+<div id="wpbench_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/wp2018.js"></script>
+ </section> </section>
+ <section>
+ <section id="smemwp">
+
+<div id="smemwp_container" class="stretch" style="margin: 0 auto"></div>
+<script src="presentations/slides/intro/smemwp2018.js"></script>
+ </section> </section>
+ <section>
+ <section id="supported">
+ <h2 style="text-align:center;">Version Support</h2>
+ <img src="http://php.net/images/supported-versions.php" align="center" width="" height="">
+<font size="6em">
+<table align="left" width="60%" border="0" style="margin-left: 1em;"><tr>
+ <td bgcolor="#90C090"><span style="font-size: 1em;">Active Support</span>
+ </td> <td ><span style="">Regular releases and security fixes</span>
+ </td></tr>
+<tr>
+ <td bgcolor="#F09030"><span style="font-size: 1em;">Security Fixes</span>
+ </td> <td ><span style="">Only security fixes</span>
+ </td></tr>
+<tr>
+ <td bgcolor="F03030"><span style="font-size: 1em;">End of Life</span>
+ </td> <td ><span style="">No longer supported</span>
+ </td></tr>
+</table></font><br />
+ </section> </section>
+ <section>
+ <section id="phan">
+ <h1 style="text-align:center;">Static Analysis</h1>
+<br/>
+<br/>
+ <div align="center" style="font-size: 2em; color: ; text-align: center; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/phan/phan" target="">github.com/phan/phan</a></div>
+ </section>
+<section id="phan0">
+ <p class="p" style="font-size:1.5em;text-align:left;">Install with composer</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1em;" >$ 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' => '7.2',
+ '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="phan1">
+ <p class="p" style="font-size:2em;text-align:left;">Checks</p>
+ <ul>
+ <li>enhanced phpdoc type annotations</li>
+ <li>Everything is defined and accessible</li>
+ <li>Type safety</li>
+ <li>PHP version compatibility</li>
+ <li>No-ops</li>
+ <li>Unreachable code</li>
+ <li>Unused use statements</li>
+ <li>Redefinitions</li>
+ <li>Signature compatibility and final on inheritance</li>
+ <li>and many more</li>
+ </ul>
+ </section>
+<section id="phan2">
+ <p class="p" style="font-size:1em;text-align:left;">Enhanced PHPDoc type annotations</p>
+ <pre><code data-trim style="font-size:1em;" >class C {
+ /**
+ * @param string|int $union
+ * @param int[] $generic
+ * @param array{mode:string,max:int} $shaped
+ */
+ static function fn($union, array $generic, $shaped) { }
+}
+C::fn("test", [1,2,3], ['mode'=>"test", 'max'=>10]);
+C::fn(1, [1,2,3], ['mode'=>"test", 'max'=>10]);
+C::fn("test", [1,2,3], ['max'=>10,'mode'=>"test"]);
+
+C::fn([1], [1,2,3], ['mode'=>"test", 'max'=>10]);
+// PhanTypeMismatchArgument Argument 1 (union) is array{0:1}
+// but \C::fn() takes int|string
+
+C::fn("test", [1,2,3], ['max'=>10]);
+// PhanTypeMismatchArgument Argument 3 (shaped) is array{max:10}
+// but \C::fn() takes array{mode:string,max:int}</code></pre>
+ </section>
+<section id="phan3">
+ <p class="p" style="font-size:1.5em;text-align:left;">User plugins</p>
+ <div align="center" style="font-size: 1.5em; color: ; text-align: center; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/phan/phan/wiki/Writing-Plugins-for-Phan" target="">Writing Plugins for Phan</a></div>
+ <p class="p" style="font-size:1.5em;text-align:left;">Included sample plugins</p>
+ <ul style="column-count:2;column-gap:1.8em;font-size:0.8em">
+ <li>Demo Plugin</li>
+ <li>Preg Regex Checker</li>
+ <li>Printf Checker</li>
+ <li>Unreachable Code</li>
+ <li>DollarDollar</li>
+ <li>NonBool Branch</li>
+ <li>Numerical Comparison</li>
+ <li>Has PHPDoc</li>
+ <li>Duplicate Expression</li>
+ </ul>
+ </section>
+<section id="phan4">
+ <p class="p" style="font-size:2em;text-align:left;">Daemon mode</p>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1em;" >$ 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>
+ </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>
+ <p class="p" style="font-size:1em;text-align:left;">perf/callgrind output support soon, hopefully</p>
+ </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="php74">
+ <h1 style="text-align:center;">PHP 7.4</h1>
+ </section>
+<section id="php74_typedprop">
+ <p class="p" style="font-size:1.1em;text-align:left;">Typed Properties</p>
+ <pre><code data-trim style="font-size:1.1em;" >class User {
+ public int $id;
+ public string $name;
+
+ public function __construct(int $id, string $name) {
+ $this->id = $id;
+ $this->name = $name;
+ }
+}</code></pre>
+ </section>
+<section id="php74_arrow">
+ <p class="p" style="font-size:1.1em;text-align:left;">Arrow Functions</p>
+ <pre><code data-trim style="font-size:1.1em;" >$cb = function ($x) use ($y) {
+ return $x + $y;
+ };
+
+$cb = fn($x) => $x + $y;</code></pre>
+ </section>
+<section id="php74_serialize">
+ <p class="p" style="font-size:1.1em;text-align:left;">__serialize/__unserialize</p>
+ <pre><code data-trim style="font-size:1.1em;" >class Test {
+ public $prop;
+ public function __serialize() {
+ return ['prop' => $this->prop];
+ }
+ public function __unserialize(array $data) {
+ $this->prop = $data['prop'];
+ }
+}</code></pre>
+ </section>
+<section id="null_coalesce_assign">
+ <p class="p" style="font-size:1em;text-align:left;">Null Coalescing Assignment Operator</p>
+ <pre><code data-trim style="font-size:1em;" >$this->config['value'] = $this->config['value'] ?? 'default_value';
+$this->config['value'] ??= 'default_value';</code></pre>
+ </section>
+<section id="weakref">
+ <p class="p" style="font-size:1em;text-align:left;">Weak References</p>
+ <pre><code data-trim style="font-size:1em;" >$std = new stdClass;
+$wr = WeakReference::create($std);</code></pre>
+ </section>
+<section id="php74_preload">
+ <p class="p" style="font-size:1.8em;text-align:center;">Opcache Preloading</p>
+ <ul>
+ <li>Loads userspace code at server startup as if it was part of core PHP</li>
+ <li>Trades some flexibility for performance</li>
+ <li>Inspired by the “Class Data Sharing” feature in Java's Hotspot VM</li>
+ </ul>
+ </section>
+<section id="php74_preload1">
+ <p class="p" style="font-size:1em;text-align:left;">Without Opcache Preloading</p>
+ <pre><code data-trim style="font-size:1.1em;" >class A {
+ function __construct() {
+ echo "A";
+ }
+}</code></pre>
+ <pre><code data-trim style="font-size:1em;" >spl_autoload_register('__load');
+function __load($c) {
+ echo "Autoloader called for $c\n";
+ require "/home/rasmus/".strtolower($c).".php";
+}
+
+new A;</code></pre>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1.1em;" >$ php script.php
+Autoloader called for A
+A</code></pre>
+ </section>
+<section id="php74_preload2">
+ <p class="p" style="font-size:1em;text-align:left;">With Opcache Preloading</p>
+ <pre><code data-trim style="font-size:1em;" >function preload($filename) {
+ if (!opcache_compile_file($filename)) {
+ trigger_error("Preloading Failed", E_USER_ERROR);
+ }
+}
+
+preload("/home/rasmus/a.php");</code></pre>
+ <pre><code class="shell nohighlight" data-trim style="font-size:1.1em;" >$ php -d opcache.preload=preload.php script.php
+A</code></pre>
+ </section>
+<section id="ffi">
+ <p class="p" style="font-size:1em;text-align:left;">FFI - Foreign Function Interface</p>
+ <pre><code data-trim style="font-size:1em;" >// create FFI object, loading libc and exporting function printf()
+$ffi = FFI::cdef(
+ "int printf(const char *format, ...);",
+ "libc.so.6");
+// call C printf()
+$ffi->printf("Hello %s!\n", "world");</code></pre>
+ </section>
+<section id="ffi_example">
+ <pre><code data-trim style="font-size:1em;" ><?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;
+ }
+ echo "Add frame $i\n";
+ $ffi->ge_add_frame($gif, 5);
+ }
+ $ffi->ge_close_gif($gif);</code></pre>
+ </section>
+<section id="ffi_example_header">
+ <pre><code data-trim style="font-size:1em;" >#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_example_output">
+ <img src="/presentations/slides/intro/test.gif" align="center" width="240" height="180">
+ </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/carl_centipede.jpg" align="center" width="" height="">
+ </section>
+<section id="j4">
+ <img src="/presentations/slides/intro/tridge.jpg" align="center" width="" height="">
+ </section>
+<section id="j5">
+ <img src="/presentations/slides/intro/roorkee.jpg" align="center" width="" height="">
+ </section>
+<section id="j6">
+ <img src="/presentations/slides/intro/arthurcclarke.jpg" align="center" width="" height="">
+ </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">
+ </section> </section>
+ <section>
+ <h3 class="p" style="text-align:center;">Work on things that matter (to you)</h3>
+ </section>
+ <section>
+ <img src="/presentations/slides/intro/lovehack-white-1000.png" align="center" width="1001" height="421">
+ </section>
+ <section>
+ <section id="thank_you">
+ <h2 style="text-align:center;">Thank You</h2>
+ <div align="left" style="font-size: 1em; color: ; text-align: left; margin-left: -1em; margin-right: ; margin-top: ; margin-bottom: ;"><a href=":-:url:-:" target="">http://talks.php.net/phpday19</a></div>
+ <div align="left" style="font-size: 1em; color: ; text-align: left; margin-left: -1em; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/phan/phan" target="">https://github.com/phan/phan</a></div>
+ <div align="left" style="font-size: 1em; color: ; text-align: left; margin-left: -1em; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/adsr/phpspy" target="">https://github.com/adsr/phpspy</a></div>
+ <div align="left" style="font-size: 1em; color: ; text-align: left; margin-left: -1em; margin-right: ; margin-top: ; margin-bottom: ;"><a href="http://php.net/migration73" target="">http://php.net/migration73</a></div>
+ <div align="left" style="font-size: 1em; color: ; text-align: left; margin-left: -1em; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://bugs.php.net" target="">https://bugs.php.net</a></div>
+<br/>
+<br/>
+<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 },
+ { 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/phpday19.xml b/phpday19.xml
new file mode 100644
index 0000000..eeef298
--- /dev/null
+++ b/phpday19.xml
@@ -0,0 +1,52 @@
+<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>25 Years of PHP</title>
+<event>phpDay</event>
+<location>Dublin</location>
+<date>May 11, 2019</date>
+<speaker>Rasmus Lerdorf</speaker>
+<url>http://talks.php.net/phpday19</url>
+<twitter>@rasmus</twitter>
+
+<slide>slides/intro/titlepage.xml</slide>
+
+<slide>slides/intro/greenland.xml</slide>
+<slide>slides/intro/80s.xml</slide>
+<slide>slides/intro/90s.xml</slide>
+<slide>slides/intro/nold.xml</slide>
+<slide>slides/intro/nold2.xml</slide>
+<slide>slides/intro/nold3.xml</slide>
+<slide>slides/intro/capi.xml</slide>
+<slide>slides/intro/eco.xml</slide>
+<slide>slides/intro/wwht2.xml</slide>
+<slide>slides/intro/wwht1.xml</slide>
+<slide>slides/intro/php73.xml</slide>
+<slide>slides/intro/dce2018.xml</slide>
+<slide>slides/intro/wp2018.xml</slide>
+<slide>slides/intro/smemwp2018.xml</slide>
+<slide>slides/intro/supported.xml</slide>
+<slide>slides/intro/phan_2018.xml</slide>
+<slide>slides/intro/phpspy.xml</slide>
+<slide>slides/intro/php74_2019.xml</slide>
+<slide>slides/intro/journey2.xml</slide>
+<slide>slides/intro/sahana.xml</slide>
+<slide>slides/intro/matter.xml</slide>
+<slide>slides/intro/lovehack.xml</slide>
+
+<slide>slides/intro/thank_you_2019.xml</slide>
+
+</presentation>
diff --git a/slides/intro/carl_centipede.jpg b/slides/intro/carl_centipede.jpg
new file mode 100644
index 0000000..1a43d84
Binary files /dev/null and b/slides/intro/carl_centipede.jpg differ
diff --git a/slides/intro/journey2.xml b/slides/intro/journey2.xml
index b875270..c7b0664 100644
--- a/slides/intro/journey2.xml
+++ b/slides/intro/journey2.xml
@@ -6,9 +6,11 @@
<break lines="1" section="j2"/>
<image filename="carl_linuxtag.jpg" align="center"/>
<break lines="1" section="j3"/>
-<image filename="tridge.jpg" align="center"/>
+<image filename="carl_centipede.jpg" align="center"/>
<break lines="1" section="j4"/>
-<image filename="roorkee.jpg" align="center"/>
+<image filename="tridge.jpg" align="center"/>
<break lines="1" section="j5"/>
+<image filename="roorkee.jpg" align="center"/>
+<break lines="1" section="j6"/>
<image filename="arthurcclarke.jpg" align="center"/>
</slide>