Just to answer the title
Apply function on all action hooks?
isn’t that hard, when you know where to look:
add_action( 'all', 'callback_function' );
Related Posts:
- Difference Between Filter and Action Hooks?
- How do you use the plugin boilerplate loader class to hook actions and filters?
- How do I Make a Theme “plugin-ready”?
- What’s the difference between hooks, filters and actions? [duplicate]
- How to use filter hook ‘post_updated_messages’ in coherence with action hook ‘save_post’
- Is it possible to create an action hook using do_action() within add_action()?
- Define a function outside a class and call the function using action or filter hook
- Woocommerce – Hide a Column in Cart Table
- Namespaced action and filter tags
- Prefixing plugin hooks (actions/filters) with a wrapper class or functions
- How to get all queries’s results after they have executed?
- Hook add_attachment error
- Call to undefined function is_home() or any conditional tags
- How to find list of all functions bind to a particular hook from my plugin?
- apply_filters() and call_user_func() to define and call a function outside a class
- WordPress Plugin Boilerplate – add actions and/or filters based on user’s role
- Ninja Forms: Front-End Forms, Post ID?
- How to create an API for my plugin?
- Which hook should be used to add an action containing a redirect?
- Explanation of the “posts_join” and “posts_fields” filter hooks?
- add_filter OO with parameters
- How Do I Load My Action Earlier Enough?
- Does WP fire delete_post when trashed posts are automatically deleted?
- What’s the earliest point I can get the queried object ID?
- How to modify post content before writing to database?
- Actions or filters fired when data is saved in a custom table
- How can I hook into existing WordPress Bulk actions?
- Hook for post permalink update
- Dynamically Override Fancy Title
- How to add custom content under plugin row in WordPress admin plugin list?
- Create a plugin to change the action to which a function is hooked
- Synchronize Custom post type tags to WordPress default posts tags
- Modifying values with add_action to be sent to db
- Hook to get image filename when it is uploaded
- Which are the hooks run before/after when a category’s deletion?
- Should action callbacks start with a verb?
- Execute Hook on the footer or header after activating a plugin
- WordPress after content Hook & external template part
- best practice for query string values – get_query_var always empty for my value supplied in query string
- get_current_screen() return null
- Adding rewrite rule dynamically
- Get Time Taken By Each Action Hook in WordPress
- How to filter content for specific content variable
- WordPress custom taxonomy check box to dropdown
- I have 2 plugins using the same wp_login action hook and one is not working
- Valid filenames for add_action’s first parameter
- WordPress class, using add_action to call member function does not work
- How dynamic action login_form_{action} is working
- What action hook can I use to add a JavaScript to a page post using a theme template that is not including get_header() nor get_footer()?
- Bug: Post needs to be updated twice when adding action for save_post hook
- When does save_post hook fire on post save/update
- Remove an action by extending class and replacing it
- hook filter after the_content on a specific page
- Bind a function with its own argument to show something dynamically after every content
- WooCommerce change Tax Class programmatically when Recalculating an existing Order [closed]
- Update variable value via add_filter
- Configure WordPress to Generate Scheme-less Relative URLs
- Can I Hook Into the TinyMCE Insert/Edit Link Button to Use Shortlink For Post?
- Include HTML (Bootstrap Modal Box) with a plugin into my header
- Using init hook for register_taxonomy is causing invalid_taxonomy in wp_insert_term()
- Adding tables to dashboard pages programmatically?
- Action / Hook when a new plugin is added
- Limit get_next_post to posts from the same author
- Any way, hook to add content right before the “read more” link?
- remove different admin menu for specific users
- WordPress Reset password Strength set to medium
- Add_action not calling callback function
- add_option_{$option} action hook not being called
- Does WordPress have something like timer hook?
- How can I set a dynamic value for post_updated_messages based on return value of post_updated?
- How do I replace title with my plugin?
- Insert plugin html content to a specific spot in the frontpage
- Passing a parameter to filter and action functions
- How to know what functions are hooked to an action/filter?
- Get a list of all registered actions
- How can I edit post data before it is saved?
- How many times will this code run? (or, how rich is grandma?)
- Trouble understanding apply_filters()
- How to override existing plugin action with new action
- add_action hook for completely new post?
- WordPress Update Plugin Hook/Action? Since 3.9
- Where is the best place to use add_filter
- How to add sub-menu to a menu generated by wp_nav_menu by using plugin
- Is there any action filter/hook for validating a custom field before publishing the post?
- How can I load a page template from a plugin?
- How many filter/action hooks are healthy?
- Add a new tab to WordPress Plugin install Listing
- Earliest hook to reliably get $post/$posts
- What does (10, 2) mean when used with add_filter
- Changing Plugin Load Order
- Admin settings update updating every time home page is hit?
- How to only hook on Single.php after content?
- WordPress Hook for user register
- Which action for triggering cron “wp”or “init”?
- Valid characters for actions, hooks and filters
- Using query_vars filter
- How to check if a hook is hooked or not?
- Global Objects and Public Methods
- Implementing advanced add_* function wrappers
- Using filters and actions for plugin API?