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bnl talk
This commit is contained in:
Rasmus Lerdorf
940
bnl19.html
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940
bnl19.html
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@@ -0,0 +1,940 @@
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<!doctype html>
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<html lang="en">
|
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|
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<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">
|
||||
|
||||
<!-- 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;
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||||
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;
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||||
}
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h4.p {
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||||
text-align: left;
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||||
}
|
||||
/* 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;
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||||
overflow-x: auto;
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padding: 0.5em;
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background: #ddd;
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color: black;
|
||||
line-height: 200%;
|
||||
-webkit-text-size-adjust: none;
|
||||
}
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|
||||
</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>
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||||
<h3>PHP Benelux</h3>
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||||
<h3>Antwerp, Belgium</h3>
|
||||
<h3>Jan.25, 2019</h3>
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||||
<a href="http://talks.php.net/bnl19">http://talks.php.net/bnl19</a><br><br>
|
||||
<p>Rasmus Lerdorf<br>
|
||||
<small><a href="http://twitter.com/@rasmus">@rasmus</a></small>
|
||||
</p>
|
||||
<aside class="notes">
|
||||
</aside>
|
||||
</section>
|
||||
<section>
|
||||
<section id="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;
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||||
|
||||
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\">");
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||||
puts("Age: <INPUT type=\"text\" name=\"age\">");
|
||||
puts("<BR><INPUT type=\"submit\">");
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||||
puts("</FORM>");
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||||
|
||||
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,
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||||
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>
|
||||
<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>
|
||||
<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://github.com/php/php-src/blob/PHP-7.3/UPGRADING" target="">https://github.com/php/php-src/blob/PHP-7.3/UPGRADING</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="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="impact">
|
||||
<h1 style="text-align:center;">Saving the Planet?</h1>
|
||||
</section>
|
||||
<section id="impact1">
|
||||
<ul>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">Around 2 billion sites on the web</li>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">On 10 million physical machines</li>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">PHP drives at least 50%</li>
|
||||
</ul>
|
||||
</section>
|
||||
<section id="impact2">
|
||||
<ul>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">Currently ~50% PHP 7 Adoption</li>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">which is about 2.5M physical servers</li>
|
||||
</ul>
|
||||
</section>
|
||||
<section id="impact3">
|
||||
<ul>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">3000 KWH/year per server costs approx. US$400</li>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">Data center cooling doubles that</li>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">0.5kg CO2 per KWH</li>
|
||||
</ul>
|
||||
</section>
|
||||
<section id="impact4">
|
||||
<p class="p" style="font-size:2em;text-align:left;">At 50% Adoption</p>
|
||||
<ul>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">US $2B savings</li>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">7.5B KWH Savings</li>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">3.75B kg less CO2</li>
|
||||
</ul>
|
||||
</section>
|
||||
<section id="impact5">
|
||||
<p class="p" style="font-size:2em;text-align:left;">Let's double that to 100%!</p>
|
||||
<ul>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">$4B savings</li>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">15B KWH Savings</li>
|
||||
<li style="font-size: 1.5em;margin-left: -1em;">7.5B kg less CO2</li>
|
||||
</ul>
|
||||
</section>
|
||||
<section id="impact6">
|
||||
<h1 style="text-align:center;">Do your part</h1>
|
||||
<h1 style="text-align:center;">Upgrade to PHP 7!</h1>
|
||||
</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 $o->foo;
|
||||
}</code></pre>
|
||||
<p class="p" style="font-size:1.1em;text-align:left;">PHP 7.3</p>
|
||||
<pre><code class="result nohighlight" data-trim style="font-size:1.05em;" >foo: (lines=2, args=0, vars=0, tmps=0)
|
||||
L0: ECHO int(1)
|
||||
L1: RETURN int(4)</code></pre>
|
||||
</section> </section>
|
||||
<section>
|
||||
<section id="phan">
|
||||
<h1 style="text-align:center;">Static Analysis</h1>
|
||||
<br/>
|
||||
<br/>
|
||||
<div align="center" style="font-size: 2em; color: ; text-align: center; margin-left: ; margin-right: ; margin-top: ; margin-bottom: ;"><a href="https://github.com/phan/phan" target="">github.com/phan/phan</a></div>
|
||||
</section>
|
||||
<section id="phan0">
|
||||
<p class="p" style="font-size:1.5em;text-align:left;">Install with composer</p>
|
||||
<pre><code class="shell nohighlight" data-trim style="font-size:1em;" >$ 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, Adam?</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 = $name;
|
||||
}
|
||||
}</code></pre>
|
||||
</section>
|
||||
<section id="php74_preload">
|
||||
<p class="p" style="font-size:1em;text-align:left;">Without Opcache Preloading</p>
|
||||
<pre><code data-trim style="font-size:1.1em;" >class A {
|
||||
function __construct() {
|
||||
echo "A";
|
||||
}
|
||||
}</code></pre>
|
||||
<pre><code data-trim style="font-size:1em;" >spl_autoload_register('__load');
|
||||
function __load($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="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="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>
|
||||
<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/bnl19</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="https://github.com/php/php-src/blob/PHP-7.3/UPGRADING" target="">https://github.com/php/php-src/blob/PHP-7.3/UPGRADING</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>
|
||||
48
bnl19.xml
Normal file
48
bnl19.xml
Normal file
@@ -0,0 +1,48 @@
|
||||
<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>PHP Benelux</event>
|
||||
<location>Antwerp, Belgium</location>
|
||||
<date>Jan.25, 2019</date>
|
||||
<speaker>Rasmus Lerdorf</speaker>
|
||||
<url>http://talks.php.net/bnl19</url>
|
||||
<twitter>@rasmus</twitter>
|
||||
|
||||
<slide>slides/intro/titlepage.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/eco.xml</slide>
|
||||
<slide>slides/intro/php73.xml</slide>
|
||||
<slide>slides/intro/wp2018.xml</slide>
|
||||
<slide>slides/intro/smemwp2018.xml</slide>
|
||||
|
||||
<slide>slides/intro/supported.xml</slide>
|
||||
<slide>slides/intro/web_impact_2018.xml</slide>
|
||||
|
||||
<slide>slides/intro/dce2018.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/thank_you_2018.xml</slide>
|
||||
|
||||
</presentation>
|
||||
88
slides/intro/php74_2019.xml
Normal file
88
slides/intro/php74_2019.xml
Normal file
@@ -0,0 +1,88 @@
|
||||
<slide title="" section="php74">
|
||||
|
||||
<blurb fontsize="20em" align="center">PHP 7.4</blurb>
|
||||
|
||||
<break lines="1" section="php74_typedprop"/>
|
||||
<blurb fontsize="1.1em" align="left">Typed Properties</blurb>
|
||||
|
||||
<example fontsize="1.1em" result='0' title="" type=""><![CDATA[<?php
|
||||
class User {
|
||||
public int $id;
|
||||
public string $name;
|
||||
|
||||
public function __construct(int $id, string $name) {
|
||||
$this->id = $id;
|
||||
$this->name = $name;
|
||||
}
|
||||
}
|
||||
]]></example>
|
||||
|
||||
<break lines="1" section="php74_preload"/>
|
||||
<blurb fontsize="1em" align="left">Without Opcache Preloading</blurb>
|
||||
|
||||
<example fontsize="1.1em" result='0' title="" type=""><![CDATA[<?php
|
||||
class A {
|
||||
function __construct() {
|
||||
echo "A";
|
||||
}
|
||||
}
|
||||
]]></example>
|
||||
|
||||
<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
|
||||
spl_autoload_register('__load');
|
||||
function __load($c) {
|
||||
echo "Autoloader called for $c\n";
|
||||
require "/home/rasmus/".strtolower($c).".php";
|
||||
}
|
||||
|
||||
new A;
|
||||
]]></example>
|
||||
|
||||
<example fontsize="1.1em" result='0' title="" type="shell nohighlight"><![CDATA[
|
||||
$ php script.php
|
||||
Autoloader called for A
|
||||
A
|
||||
]]></example>
|
||||
|
||||
<break lines="1" section="php74_preload2"/>
|
||||
|
||||
<blurb fontsize="1em" align="left">With Opcache Preloading</blurb>
|
||||
|
||||
<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
|
||||
function preload($filename) {
|
||||
if (!opcache_compile_file($filename)) {
|
||||
trigger_error("Preloading Failed", E_USER_ERROR);
|
||||
}
|
||||
}
|
||||
|
||||
preload("/home/rasmus/a.php");
|
||||
]]></example>
|
||||
|
||||
<example fontsize="1.1em" result='0' title="" type="shell nohighlight"><![CDATA[
|
||||
$ php -d opcache.preload=preload.php script.php
|
||||
A
|
||||
]]></example>
|
||||
|
||||
<break lines="1" section="null_coalesce_assign"/>
|
||||
|
||||
<blurb fontsize="1em" align="left">Null Coalescing Assignment Operator</blurb>
|
||||
|
||||
<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
|
||||
$this->config['value'] = $this->config['value'] ?? 'default_value';
|
||||
$this->config['value'] ??= 'default_value';
|
||||
]]></example>
|
||||
|
||||
<break lines="1" section="ffi"/>
|
||||
|
||||
<blurb fontsize="1em" align="left">FFI - Foreign Function Interface</blurb>
|
||||
|
||||
<example fontsize="1em" result='0' title="" type=""><![CDATA[<?php
|
||||
// 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");
|
||||
]]></example>
|
||||
|
||||
</slide>
|
||||
@@ -94,7 +94,7 @@ $ sudo phpspy -m php src/phan.php
|
||||
# mem 82471616 123721960
|
||||
]]></example>
|
||||
|
||||
<blurb fontsize="1em" align="left">perf/callgrind output support soon, Adam?</blurb>
|
||||
<blurb fontsize="1em" align="left">perf/callgrind output support soon, hopefully</blurb>
|
||||
|
||||
<break lines="1" section="spy4"/>
|
||||
<blurb fontsize="1.1em" align="left">Generate a flame graph</blurb>
|
||||
|
||||
Reference in New Issue
Block a user