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‎README.md

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## Presentation History
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* [WavePHP 2018](https://wavephp.com/) — September 20, 2018 ([join.in](https://joind.in/talk/6908c), [PDF](https://github.com/stevegrunwell/building-for-php-cli/releases/download/wavephp-2018/slides.pdf))
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* [Southeast PHP](https://southeastphp.com/) - August 17, 2018 ([PDF](https://github.com/stevegrunwell/building-for-php-cli/releases/download/southeastphp-2018/slides.pdf), [joind.in](https://joind.in/talk/ed2e4))
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* [PHPDetroit](https://phpdetroit.io/) - July 28, 2018 ([PDF](https://github.com/stevegrunwell/building-for-php-cli/releases/download/phpdetroit-2018/slides.pdf), [joind.in](https://joind.in/talk/e6d00))
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* [php[tek] 2018](https://tek18.phparch.com/speakers/steve-grunwell/) - May 31, 2018 ([PDF](https://github.com/stevegrunwell/building-for-php-cli/releases/download/phptek-2018/slides.pdf), [joind.in](https://joind.in/talk/c6025))
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* [Midwest PHP 2019](https://2019.midwestphp.org/) — March 8, 2019 ([Joind.in](https://joind.in/talk/b9a05))
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* [WavePHP 2018](https://wavephp.com/) — September 20, 2018 ([Joind.in](https://joind.in/talk/6908c), [PDF](https://github.com/stevegrunwell/building-for-php-cli/releases/download/wavephp-2018/slides.pdf))
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* [Southeast PHP](https://southeastphp.com/) - August 17, 2018 ([Joind.in](https://joind.in/talk/ed2e4), [PDF](https://github.com/stevegrunwell/building-for-php-cli/releases/download/southeastphp-2018/slides.pdf))
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* [PHPDetroit](https://phpdetroit.io/) - July 28, 2018 ([Joind.in](https://joind.in/talk/e6d00), [PDF](https://github.com/stevegrunwell/building-for-php-cli/releases/download/phpdetroit-2018/slides.pdf))
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* [php[tek] 2018](https://tek18.phparch.com/speakers/steve-grunwell/) - May 31, 2018 ([Joind.in](https://joind.in/talk/c6025), [PDF](https://github.com/stevegrunwell/building-for-php-cli/releases/download/phptek-2018/slides.pdf))
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* [Music City Code 2017](https://www.musiccitycode.com/) - June 3, 2017
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* [CodeMash 2017](http://www.codemash.org/) - January 13, 2017
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* [Nomad PHP (EU)](https://nomadphp.com/nomadphp-2016-12-eu/) – December 15, 2016 ([joind.in](https://joind.in/talk/dce28))
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* [php[tek] 2016](https://tek16.phparch.com/speakers/#66432) – May 27, 2016 ([joind.in](https://joind.in/talk/ce9a4))
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* [Columbus PHP Meetup](http://www.meetup.com/phpphp/events/229434721/) – April 13, 2016 ([joind.in](https://joind.in/talk/e9465))
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* [Nomad PHP (EU)](https://nomadphp.com/nomadphp-2016-12-eu/) – December 15, 2016 ([Joind.in](https://joind.in/talk/dce28))
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* [php[tek] 2016](https://tek16.phparch.com/speakers/#66432) – May 27, 2016 ([Joind.in](https://joind.in/talk/ce9a4))
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* [Columbus PHP Meetup](http://www.meetup.com/phpphp/events/229434721/) – April 13, 2016 ([Joind.in](https://joind.in/talk/e9465))

‎css/source/theme.scss

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// ---------------------------------------------
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// Include theme-specific fonts
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@import url('https://fonts.googleapis.com/css?family=Montserrat|Open+Sans');
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@import url('https://fonts.googleapis.com/css?family=Open+Sans|Paytone+One');
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// Override theme settings (see ../../bower_components/reveal.js/css/theme/template/settings.scss)
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$backgroundColor: #fff;
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$mainFontSize: 38px;
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$mainFont: 'Open Sans', sans-serif;
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$headingFont: Montserrat, 'Open Sans', sans-serif;
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$headingFont: 'Paytone One', 'Open Sans', sans-serif;
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$headingTextShadow: none;
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$headingLetterSpacing: normal;
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$headingTextTransform: uppercase;

‎css/theme.css

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*
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* By Hakim El Hattab, http://hakim.se
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*/
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@import url("https://fonts.googleapis.com/css?family=Montserrat|Open+Sans");
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@import url("https://fonts.googleapis.com/css?family=Open+Sans|Paytone+One");
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section.has-dark-background, section.has-dark-background h1, section.has-dark-background h2, section.has-dark-background h3, section.has-dark-background h4, section.has-dark-background h5, section.has-dark-background h6 {
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color: #fff; }
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.reveal h6 {
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margin: 0 0 20px 0;
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color: #333;
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font-family: Montserrat, "Open Sans", sans-serif;
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font-family: "Paytone One", "Open Sans", sans-serif;
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font-weight: 400;
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line-height: 1.2;
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letter-spacing: normal;
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clear: both;
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float: left;
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width: 35%;
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font-family: Montserrat, "Open Sans", sans-serif;
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font-family: "Paytone One", "Open Sans", sans-serif;
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text-align: right; }
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.slides dl dd {
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clear: right;

‎resources/emily.jpg

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‎slides/about-me.md

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‎slides/emily.md

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‎slides/environment-variables.md

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### Environment Variables
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```php
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$name = getenv('DEMO_NAME');
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$apiKey = getenv('API_KEY');
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if ($name) {
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printf('Hey, I recognize you, %s!' . PHP_EOL, $name);
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$name = sprintf('My old friend, %s!', $name);
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// It wasn't provided via environment variable.
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if (! $apiKey && ! empty($argv[1])) {
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$apiKey = $argv[1];
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}
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} else {
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echo "I don't know you, so I'll just call you Fred." . PHP_EOL;
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$name = 'Fred';
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// Neither environment nor argument.
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if (! $apiKey) {
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echo 'An API key must be provided!';
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exit(1);
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}
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// Update DEMO_NAME and call the system's echo program.
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putenv('DEMO_NAME=' . $name);
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passthru('echo $DEMO_NAME');
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echo "API Key: $apiKey";
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```
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Note:
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Another neat trick is the ability to access environment variables from within your PHP script.
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Another neat trick is the ability to access environment variables from within your PHP script.
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Can use both getenv() and putenv().

‎slides/environment-variables2.md

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### Environment Variables
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`export DEMO_NAME="Steve"`
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```html
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> Hey, I recognize you, Steve!
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> My old friend, Steve!
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```sh
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$ API_KEY=abc123 php my-script.php
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API Key: abc123
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```
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<!-- .element: class="fragment" -->
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```sh
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$ php my-script.php xyz789
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<br>Otherwise:
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```html
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> I don't know you, so I'll just call you Fred.
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> Fred
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API Key: xyz789
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```
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<!-- .element: class="fragment" -->
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```sh
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$ API_KEY=abc123 php my-script.php xyz789
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API Key: abc123
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```
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<!-- .element: class="fragment" -->
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Note:
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Since the script was checking for the environment variable first, that will take precedence when the script is run.

‎slides/escaping-arguments.md

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```
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<!-- .element: class="fragment" data-fragment-index="1" -->
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##### Much Better:
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Much Better:
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<!-- .element: class="fragment" data-fragment-index="2" -->
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```php

‎slides/exit-codes2.md

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exit(1);
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}
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// Do something awesome
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echo "Script ran!";
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```
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```sh
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$ php my-script.php foo && echo "Success"
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> Script ran!
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> Success
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```
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<!-- .element: class="fragment" -->
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```sh
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$ php my-script.php && echo "You will never see this"
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> Missing required argument!
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```
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<!-- .element: class="fragment" -->
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‎slides/list.json

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[
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"index.md",
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[
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"about-me.md",
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"emily.md"
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],
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[
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"why-the-cli.md",
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"benefits.md",
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"escaping-shell-commands.md",
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"escapeshellcmd.md",
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"escaping-arguments.md",
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"environment-variables.md",
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"environment-variables2.md",
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"exit-codes.md",
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"exit-codes2.md",
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"environment-variables.md",
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"environment-variables2.md",
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"daemons.md"
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],
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[

‎slides/php-cli-tools-example2.md

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$ php examples/PHPCliToolsExample.php
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```
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```html
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$ php examples/PHPCliToolsExample.php
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How high should I count? [10]: 5
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Shall I shout it? [y/N]y
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1!
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<pre class="hljs lang-html fragment"><code>How high should I count? [10]: 5</code><code class="fragment">Shall I shout it? [y/N]y</code><code class="fragment">1!
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2!
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3!
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5!
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```
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5!</code></pre>

‎slides/php-sapi.md

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* Used to running in something like the fpm-fcgi SAPI for web requests.
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* Use the php_sapi_name() function or PHP_SAPI constant to determine the server API being used

‎slides/thank-you.md

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## Thank You!
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Steve Grunwell<br>
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[stevegrunwell.com](https://stevegrunwell.com)<br>
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[liquidweb.com](https://www.liquidweb.com)
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Senior Software Engineer, Liquid Web
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[stevegrunwell.com/slides/php-cli](https://stevegrunwell.com/slides/php-cli)<!-- .element: class="slides-link" -->
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<p class="slides-link">
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[stevegrunwell.com/slides/php-cli](https://stevegrunwell.com/slides/php-cli)<br>[joind.in/talk/b9a05](https://joind.in/talk/b9a05)
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</p>

‎slides/wp-cli-example.md

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Looking at WP-CLI commands, they're registered using the WP_CLI::add_command() method.
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Looking at WP-CLI commands, they're registered using the WP_CLI::add_command() method.
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Each command class will contain at least one public method, each of which will become sub-commands (e.g. "wp example-command some-function").

‎templates/_index.html

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<!-- For syntax highlighting -->
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<link rel="stylesheet" href="bower_components/highlightjs/styles/zenburn.css">
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<link rel="stylesheet" href="bower_components/highlightjs/styles/github.css">
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<!-- Printing and PDF exports -->
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<script>

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