Tìm hiểu Wordpress hook
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Hooks allow modifying WordPress core functionality through themes and plugins. There are two types of hooks: actions and filters. Actions add elements like scripts, while filters modify data before storage or output. Hooks are implemented by specifying a tag and callback function. Developers should uniquely name functions and hooks, and check for existing hooks to avoid conflicts.
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Tìm hiểu Wordpress hook
- 1. Wordpress Hook Wednesday, March 1, 2017 www.qsoftvietnam.com 1 Presenter: HopLB
- 2. Wednesday, March 1, 2017 www.qsoftvietnam.com 2 Table of content I. What is a hook? II. Type of hook in Wordpress III. How to “hook”? IV. Removing hook V. Some advice
- 3. Wednesday, March 1, 2017 www.qsoftvietnam.com 3 What is a Hook? Hooks allow you to change the core functionality of WordPress. They are implemented through themes and plugins.
- 4. Wednesday, March 1, 2017 www.qsoftvietnam.com 4
- 5. Wednesday, March 1, 2017 www.qsoftvietnam.com 5 Type of shortcode in Wordpress There are two kinds of hooks in WordPress: Actions and Filters
- 6. Wednesday, March 1, 2017 www.qsoftvietnam.com 6 How to “action hook” Existing action: https://codex.wordpress.org/Plugin_API/Action_Reference
- 7. Wednesday, March 1, 2017 www.qsoftvietnam.com 7 How to “action hook” Use actions when you want to add something to the existing page such as stylesheets, JavaScript dependencies, or send an email when an event has happened.
- 8. Wednesday, March 1, 2017 www.qsoftvietnam.com 8 How to “action hook”
- 9. Wednesday, March 1, 2017 www.qsoftvietnam.com 9 How to “filter hook” Existing filter: https://codex.wordpress.org/Plugin_API/Filter_Reference
- 10. Wednesday, March 1, 2017 www.qsoftvietnam.com 10 How to “filter hook” Use filters when you want to manipulate data coming out of the database prior to going to the browser, or coming from the browser prior to going into the database.
- 11. Wednesday, March 1, 2017 www.qsoftvietnam.com 11 How to “filter hook” The callback functions attached to filter hook $tag are invoked by calling this function. This function can be used to create a new filter hook by simply calling this function with the name of the new hook specified using the $tag parameter.
- 12. Wednesday, March 1, 2017 www.qsoftvietnam.com 12 How to removing hooks
- 13. Wednesday, March 1, 2017 www.qsoftvietnam.com 13 Advice • Function names must be unique (Prefix your function) • Use function_exists before register a function • Your custom hook must be unique (Prefix your hook names) • Dynamic hook names: 'pre_option_' . $option • Use did_action or doing_action in case you need to check
- 14. THANK YOU FOR YOUR ATTENTION ! Wednesday, March 1, 2017 www.qsoftvietnam.com 14