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1115 lines
44 KiB
HTML
1115 lines
44 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>25 Years of PHP</title>
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<meta name="description" content="25 Years of PHP">
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<meta name="author" content="Rasmus Lerdorf">
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<meta name="apple-mobile-web-app-capable" content="yes" />
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<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">
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<!-- Override a few styles -->
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<style>
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/*
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Not actually sure why this block isn't being picked up from the syntax highlight css
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If you change the syntax highlight theme, copy the first block here
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*/
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.reveal pre {
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width: 100%;
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}
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display: block;
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max-height: 600px;
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line-height: 125%;
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background: #fff;
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.reveal section img {
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display: block;
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}
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/* Left-align h3 and h4 if they are p elements */
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h3.p {
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text-align: left;
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h4.p {
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/* and left-aligned but slightly indented bullet lists */
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.reveal ul {
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display: block;
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margin: 0 0 1em 3em;
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}
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/* Example titles */
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p.example {
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text-align: left;
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margin: 0 0 -0.5em 1em;
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/* Example output style */
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</style>
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<!-- Needed for charts to work. Fall back to network if no local copy -->
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<script type='text/javascript' src='/jquery.min.js'></script>
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<script>window.jQuery || document.write('<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js">\x3C/script>')</script>
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<script src="/highcharts.js"></script>
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<script>window.Highcharts || document.write('<script src="http://code.highcharts.com/highcharts.js">\x3C/script>')</script>
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<!--[if lt IE 9]>
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<script src="/reveal.js/lib/js/html5shiv.js"></script>
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<![endif]-->
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</head>
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<body>
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<div class="reveal">
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<!-- Any section element inside of this container is displayed as a slide -->
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<div class="slides">
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<section>
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<h1>25 Years of PHP</h1>
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<h3>phpDay</h3>
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<h3>Verona</h3>
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<h3>May 11, 2019</h3>
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<a href="http://talks.php.net/phpday19">http://talks.php.net/phpday19</a><br><br>
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<p>Rasmus Lerdorf<br>
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<small><a href="http://twitter.com/@rasmus">@rasmus</a></small>
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</p>
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<aside class="notes">
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</aside>
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</section>
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<section data-background-color="#000000">
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<section id="s">
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<img src="/presentations/slides/intro/greenland_map.png" align="center" width="" height="">
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</section>
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<section id="s1">
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<img src="/presentations/slides/intro/greenland_edge.jpg" align="center" width="" height="">
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</section>
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<section id="s2">
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<img src="/presentations/slides/intro/greenland_boots.jpg" align="center" width="" height="">
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</section>
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<section id="s3">
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<img src="/presentations/slides/intro/greenland_box.jpg" align="center" width="" height="">
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</section>
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<section id="s4">
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<img src="/presentations/slides/intro/greenland_dogsled.jpg" align="center" width="" height="">
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</section>
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<section id="s5">
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<img src="/presentations/slides/intro/greenland_house.jpg" align="center" width="" height="">
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</section>
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<section id="s6">
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<img src="/presentations/slides/intro/greenland_summer.jpg" align="center" width="" height="">
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</section>
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<section id="s7">
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<img src="/presentations/slides/intro/greenland_tech1.jpg" align="center" width="" height="">
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</section>
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<section id="s8">
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<img src="/presentations/slides/intro/greenland_tech2.jpg" align="center" width="" height="">
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</section>
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<section id="s9">
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<img src="/presentations/slides/intro/greenland_tech3.jpg" align="center" width="" height="">
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</section> </section>
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<section>
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<section id="hist_80s">
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<h1 style="text-align:center;text-transform:none">1980s</h1>
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<img src="/presentations/slides/intro/timex.jpg" align="center" width="" height="">
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</section>
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<section id="hist_80s_1">
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<img src="/presentations/slides/intro/vic20.jpg" align="center" width="" height="">
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</section>
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<section id="hist_80s_2">
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<img src="/presentations/slides/intro/hayes.jpg" align="center" width="" height="">
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</section>
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<section id="hist_80s_3">
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<img src="/presentations/slides/intro/Zmodem.gif" align="center" width="" height="">
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</section> </section>
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<section>
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<section id="hist_90s">
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<h1 style="text-align:center;text-transform:none">1990s</h1>
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<img src="/presentations/slides/intro/gopher.gif" align="center" width="" height="">
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</section>
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<section id="hist_90s_1">
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<img src="/presentations/slides/intro/mosaic.jpg" align="center" width="" height="">
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</section> </section>
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<section>
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<section id="hist_1993">
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<h3 class="p" style="text-align:center;">1993</h3>
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<pre><code class="C" data-trim style="font-size:0.8em;" >#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#define ishex(x) (((x) >= '0' && (x) <= '9') || ((x) >= 'a' && \
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(x) <= 'f') || ((x) >= 'A' && (x) <= 'F'))
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int htoi(char *s) {
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int value;
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char c;
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c = s[0];
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if(isupper(c)) c = tolower(c);
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value=(c >= '0' && c <= '9' ? c - '0' : c - 'a' + 10) * 16;
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c = s[1];
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if(isupper(c)) c = tolower(c);
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value += c >= '0' && c <= '9' ? c - '0' : c - 'a' + 10;
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return(value);
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}
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void main(int argc, char *argv[]) {
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char *params, *data, *dest, *s, *tmp;
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char *name, *age;
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puts("Content-type: text/html\r\n");
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puts("<HTML><HEAD><TITLE>Form Example</TITLE></HEAD>");
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puts("<BODY><H1>My Example Form</H1>");
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puts("<FORM action=\"form.cgi\" method=\"GET\">");
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puts("Name: <INPUT type=\"text\" name=\"name\">");
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puts("Age: <INPUT type=\"text\" name=\"age\">");
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puts("<BR><INPUT type=\"submit\">");
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puts("</FORM>");
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data = getenv("QUERY_STRING");
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if(data && *data) {
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params = data; dest = data;
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while(*data) {
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if(*data=='+') *dest=' ';
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else if(*data == '%' && ishex(*(data+1))&&ishex(*(data+2))) {
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*dest = (char) htoi(data + 1);
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data+=2;
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} else *dest = *data;
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data++;
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dest++;
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}
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*dest = '\0';
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s = strtok(params,"&");
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do {
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tmp = strchr(s,'=');
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if(tmp) {
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*tmp = '\0';
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if(!strcmp(s,"name")) name = tmp+1;
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else if(!strcmp(s,"age")) age = tmp+1;
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}
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} while(s=strtok(NULL,"&"));
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printf("Hi %s, you are %s years old\n",name,age);
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}
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puts("</BODY></HTML>");
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}</code></pre>
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</section> </section>
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<section>
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<section id="hist_1993_2">
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<h3 class="p" style="text-align:center;">1993</h3>
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<pre><code class="Perl" data-trim >use CGI qw(:standard);
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print header;
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print start_html('Form Example'),
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h1('My Example Form'),
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start_form,
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"Name: ", textfield('name'),
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p,
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"Age: ", textfield('age'),
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p,
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submit,
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end_form;
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if(param()) {
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print "Hi ",em(param('name')),
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"You are ",em(param('age')),
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" years old";
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}
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print end_html;</code></pre>
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</section> </section>
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<section>
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<section id="hist_1994">
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<h3 class="p" style="text-align:center;">1994-1995</h3>
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<pre><code class="PHP" data-trim ><html><head><title>Form Example</title></head>
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<body><h1>My Example Form</h1>
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<form action="form.phtml" method="POST">
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Name: <input type="text" name="name">
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Age: <input type="text" name="age">
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<br><input type="submit">
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</form>
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<?if($name):?>
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Hi <?echo $name?>, you are <?echo $age?> years old
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<?endif?>
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</body></html></code></pre>
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</section> </section>
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<section>
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<h2>C API for the Web</h2>
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<pre><code class="C" data-trim >void Cos(void) {
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Stack *s;
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char temp[64];
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s = Pop();
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if(!s) {
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Error("Stack error in cos");
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return;
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}
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sprintf(temp,"%f",cos(s->douval));
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Push(temp,DNUMBER);
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}</code></pre>
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<h4 class="p">And you could then use it like this:</h4>
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<pre><code class="nohighlight" data-trim ><html><head><title>Cos Example</title></head>
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<body><h1>Cos Example</h1>
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<?echo Cos($input)>
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</body></html></code></pre>
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<aside class="notes"><br />
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Actually the very first markup used html comments<br />
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<? ... > came shortly after.<br />
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Note the lack of the closing '?'<br />
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BUT nobody was interested!<br />
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</aside>
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</section>
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<section>
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<h3 class="p">Focus on the Ecosystem</h3>
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<ul>
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<li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">LAMP wasn't an accident</li>
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<li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Robustness, Performance and Security</li>
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<li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;"><font color="ff2233">♥</font> shared hosting ISPs</li>
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</ul>
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<br/>
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<h3 class="p">Scale</h3>
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<ul>
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<li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Scaling up is expected</li>
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<li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Scaling down is surprisingly hard</li>
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<li style="font-size: 1.1em;margin-left: 2em;list-style-type: none;">Doing both is rocket science</li>
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</ul>
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</section>
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<section>
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<h3 class="p">Performance</h3>
|
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<ul>
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<li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">mod_php</li>
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<li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">shared-nothing perfect sandbox model</li>
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</ul>
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<h3 class="p">Robustness</h3>
|
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<ul>
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<li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">SQL LIMIT clause</li>
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<li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">Promote Prefork shared-nothing model</li>
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</ul>
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<h3 class="p">Security</h3>
|
|
<ul>
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<li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">max_execution_time</li>
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<li style="font-size: 1.1em;margin-left: 1em;list-style-type: bullet;">memory_limit</li>
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<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>
|