For simple cases like quick one-liner returns one should remember that it’s possible to hook an anonymous function directly in the add filter call, e.g:
add_filter('some_filter_hook', function($v){return str_replace('..', '.', $v);});
add_action('some_action_hook', function(){echo '....';});
Related Posts:
- How to know what functions are hooked to an action/filter?
- How to debug removal of rewrite rule flushing?
- how to determine how many and what kind of arguments are passed to hooks
- Passing a parameter to filter and action functions
- Difference Between Filter and Action Hooks?
- Get a list of all registered actions
- Is there a hook that runs after a user logs in?
- How can I edit post data before it is saved?
- Difference between do_action and add_action
- Trouble understanding apply_filters()
- Why do some hooks not work inside class context?
- Difference between after_setup_theme and init action hooks?
- Is there any action filter/hook for validating a custom field before publishing the post?
- Trigger custom action when setting button pressed
- Please explain how these hooks work
- How many filter/action hooks are healthy?
- Earliest hook to reliably get $post/$posts
- Hook after image is uploaded and image sizes generated
- What does (10, 2) mean when used with add_filter
- add_action(‘wp_ajax_[action name]’, myfunction) problem
- How to only hook on Single.php after content?
- How to remove action hook done in a plugin from functions.php in my theme?
- Valid characters for actions, hooks and filters
- How to check if a hook is hooked or not?
- trigger save_post event programmatically
- My add_action (wp_footer, ‘method’) is not calling?
- What is the earliest possible hook for safely using `is_front_page`?
- How do you use the plugin boilerplate loader class to hook actions and filters?
- How to check if which hook triggered the call to a function?
- Send data to 3rd party api with wp_remote_post on wp_login
- is it possible to get the hook name in add_action?
- Run javascript code after wp_login hook?
- How do I Make a Theme “plugin-ready”?
- Difference between hooks Plugin_loaded and admin_int?
- How to make post and comment count unclickable with dashboard_glance_items hook
- Redirect logged in users if they are on a specific page
- Hook into admin post list page
- admin_post hook not called
- Anyway to edit the titlebar of WordPress Widgets in the Admin area?
- Check if action hook exists before adding actions to it
- 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’
- Hooks are not executing
- About Hooks and Filters
- after login that will redirect user role into a page
- Should I use add_action(‘publish_post or add_filter(‘publish_post?
- Please explain me what the do_action does
- Is it possible to create an action hook using do_action() within add_action()?
- add_action on inherit post status
- Detect type of post status transition
- Create hooks based on an array of hook names?
- Use external link in the add sub menu
- Hook before inserting user into database [duplicate]
- How to pass arguments to add_action() [duplicate]
- Too many actions/filters!
- action lifecycle
- do_action and hook methods
- How to use the post_updated hook before and after arguments
- Is there a recover_post hook to go with trash_post hook?
- Redirect users on specific post category or category page
- How to get list of all hooks of current theme / plugin?
- Is This A Correct Example Usage Of current_filter()?
- Find variables available at a given hook
- How does WordPress call functions attached to a certain action hook before calling functions attached to other hooks
- WP Admin Bar frontend issue with dashicon deregister
- Define a function outside a class and call the function using action or filter hook
- How can i trigger an action manually?
- How to filter content post only on save
- Filter or action hook to insert content on admin pages before tag
- Conditionally call add_action depending on post_type?
- How to get post ID in post_updated action hook?
- hooks & filters and variables
- wp_redirect() not working on form submission with init hook
- add_action for lost_password or modify wp-login.php?action=lostpassword
- Remove “Get Shortlink” button in admin of custom post type
- Run add_action hook if condition
- Woocommerce – Hide a Column in Cart Table
- Add my own function to existing WooCommerce hook
- Empty Super Cache programmatically (with ACF action) [closed]
- What is the best filter where to use register_block_type?
- Is there a Woocommerce hook that fires when applying a coupon but before checking if it’s valid?
- What is the action hook for an order that fails on frontend checkout in WooCommerce?
- How to use do_action_ref_array?
- Is it possible to track down Actions and Filters?
- Admin Hook at the Login Page
- When to use actions and when to use filters
- Check if do_action(‘custom_action’) is hooked into?
- Is possible dequeue/remove style from wp_footer() hook and add on wp_head() hook?
- How can i do something after head like adding a hook for after head but before post
- Same Conditionals Not Working on Two Different Hooks
- How to find hooks as per Just-In-Time approach?
- How to call a function or method that is Namespaced using another plugin
- add filter login_redirect does not contain original requested redirect
- get_header and hook avoid normal call
- Accepted arguments value in hook functions
- How To Make Sure That My Action Hook Executes Last
- Does update_comment_meta hook exists?
- Can the wp_filter object hold multiple values with the same key
- WP CLI Get all Enqueued Scripts and Styles
- Delay an action until current action is completed