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WordPress Bootcamp Part 2 - Extending WordPress
This document discusses extending WordPress through plugins. It advises not to hack the WordPress core files and instead use plugins to add new functionality. Plugins can use hooks called actions and filters to modify WordPress behavior at certain points. Actions allow plugins to execute functions at specific times, while filters allow modifying text before it is saved or output. The document provides examples of actions and filters and best practices for plugin development like using unique names and coding standards. It also briefly introduces the Transient API and WP Events.
WordPress Bootcamp Part 2 - Extending WordPress
- 2. Extending WP PART 2 ExtendingWordPress
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- 4. Extending WP core =essential WordPress files
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- 8. Extending WP Don’t HackCore WHY? Can’t Upgrade :(
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- 11. Extending WP Plugins “Plugins are tools to extend the functionality of WordPress. The core of WordPress is designed to be lean, to maximize flexibility and minimize code bloat. Plugins offer custom functions and features so that each user can tailor their site to their specific needs.”
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- 17. Extending WP PROGRAMMING YOUR PLUGIN
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- 19. Extending WP TWO Actions TYPES Filters
- 20. Extending WP modify thedefault behavior of WP
- 21. Extending WP Actions “Actionsare the hooks that the WordPress core launches at specific points during execution, or when specific events occur. Your plugin can specify that one or more of its PHP functions are executed at these points, using the Action API.”
- 22. Extending WP Actions hook_name= name of action hook your_function_name = name of function you have defined to be executed following the specified action hook priority (optional) = an integer that can be used to specify the order of action hooks. (default: 10) accepted_args (optional) = how many arguments your function takes
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- 25. Extending WP Actions http://codex.wordpress.org/Plugin_API/Action_Reference plugins_loaded, wp_head, wp_print_styles, wp_print_scripts, wp_footer, wp_print_footer_scripts, add_attachment, add_category, delete_category, delete_post, edit_attachment, edit_category, edit_post, publish_page, publish_post, save_post, comment_post, edit_comment, delete_comment
- 26. Filters Extending WP “Filters are the hooks that WordPress launches to modify text of various types before adding it to the database or sending it to the browser screen. Your plugin can specify that one or more of its PHP functions is executed to modify specific types of text at these times, using the Filter API.”
- 27. Extending WP Filters tag = name of filter hook your_function_name = name of function you have defined to be apply filter priority (optional) = an integer that can be used to specify the order of filter hooks. (default: 10) accepted_args (optional) = how many arguments your function takes
- 28. Filters Extending WP
- 29. Extending WP Filters http://codex.wordpress.org/Plugin_API/Filter_Reference wp_title, the_title, the_excerpt, the_content, the_author, login_headertitle, login_headerurl, login_message, comment_excerpt, widget_title, excerpt_length, excerpt_more
- 30. Extending WP From WP.org... FollowCoding Standards. Use Unique Names. Don’t hardcode DB prefixes but use $wpdb->prefix instead. (ie. wp_) SELECT only what you need. Add define('WP_DEBUG', true); to your wp-config.php file.
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- 32. Extending WP Adding Scripts(jQuery, etc.)
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- 40. Extending WP 2 OtherReally Cool Things
- 41. Extending WP TransientAPI & WP Events (Cron)
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- 44. Extending WP Alsocheck out WP Object Cache and plugin caching solutions like WP Super Cache and W3 Total Cache.
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