WordPress Hooks:

The Right Way to Extend Your

WordPress

B Y K A N O U I V I R A C H

http://www.freeiconspng.com/free-images/hook-icon-24086

Research & Development Architect

KAN OUIVIRACHWho am I?

Our WordPress Plugins

ConnectWise Forms Integration

Login Logout Shortcode

Multisite Login LogosWooCommerce Cart

Count Shortcode

WHAT ARE HOOKS?

http://vignette1.wikia.nocookie.net/villains/images/a/a6/Captain_Hook_(Hook).jpg/revision/latest?cb=20140330214655

http://www.punchdrunksports.com/n4s-content/uploads/2015/01/Boxing-Right-Hook.jpg

??????

HOOKS are…• Magic

• Extend WordPress without messing with the core!

• Event-driven programming

• Actions + Filters

How do they work?

What if we want to do

something here?

WORDPRESS

<code>

</code>

Normal Flow

? ? ?

Hook it!

WORDPRESS

<code>

</code>

We write code.

<code>

WORDPRESS

<code>

</code>

<code>

New Flow!!!

2

1

3

Actions vs. Filters

File: wp-includes/plugin.php

File: wp-includes/plugin.php

apply_filters

File: wp-includes/plugin.php

do_action

Actions vs. Filters

do something

change something

File: functions.php

Add text in ‘Footer’

File: functions.php

Make content ‘UPPERCASE’

YOUR OWN HOOK!

Recap• Extend without modifying

• Actions vs. Filters

• Right way to extend WordPress functionality

Thank youhttps://github.com/zkan/wordcamp-bangkok-2017