WordPress Actions and Filters: What's the Difference?

The Difference Between WordPress Actions and Filters (for beginners ...

The Difference. Actions do something at a specific point, filters modify a value and return it. For example, with an action you can add information to a post before it is saved. With a filter, you can change the format of the date on every blog post. With an action, you can put an ad on every page on your site.

Difference Between Filter and Action Hooks? - plugin development

a filter takes the info it receives, modifies it somehow, and returns it. In other words: it filters something and passes it back to the hook for further use. Said another way: an action interrupts the code flow to do something, and then returns back to the normal flow without modifying anything; a filter is used to modify something in a ...

Actions - Plugin Handbook | Developer.WordPress.org

Actions are one of the two types of Hooks. They provide a way for running a function at a specific point in the execution of WordPress Core, plugins, and themes. Callback functions for an Action do not return anything back to the calling Action hook. They are the counterpart to Filters. Here is a refresher of the difference between actions and ...

WordPress Action Hooks | Learn WordPress

In this video, we will cover a brief introduction to hooks, the two types of hooks: actions and filters, what actions are and how to use them, action hook priority and argument parameters, and action hook order. Hooks allow your theme or plugin code to interact with or modify the execution of a WordPress request at specific predefined spots.

The Beginner's Guide to WordPress Actions and Filters

Filters are functions that WordPress passes data through during certain points of the page lifecycle. They are primarily responsible for intercepting, managing, and returning data before rendering it to the browser or saving data from the browser to the database. Assume for a moment that a site visitor is about to load a post.

WordPress Hooks: How to Use Actions, Filters, and Custom Hooks - Kinsta

Filters are used to modify or customize data used by other functions. Actions are defined/created by the function do_action( 'action_name' )in the WordPress code. Filters are defined/created by the function apply_filters( 'filter_name', 'value_to_be_filtered' )in the WordPress code. Actions are also called Action hooks.

A complete guide on WordPress Hooks, Actions, and Filters

Step 1: WordPress hooks the action or filter function. Step 2: The hooked action or filter is executed, and the WordPress hooks that were run will immediately return the value true. This lets WordPress know everything is OK and should continue to the next step (i.e., proceed to the next hook in the system). Step 3: Depending on the filter or ...

A Guide to WordPress Hooks, Actions, and Filters

Filters are used to modify or customize data used by other functions. Actions are defined/created by the function do_action ( 'action_name' ) in the WordPress code. Filters are defined/created by the function apply_filters ( 'filter_name', 'value_to_be_filtered' ) in the WordPress code. Actions are also called Action hooks.

Hooks - Plugin Handbook | Developer.WordPress.org

WordPress provides many hooks that you can use, but you can also create your own so that other developers can extend and modify your plugin or theme. Actions vs. Filters. The main difference between an action and a filter can be summed up like this: an action takes the info it receives, does something with it, and returns nothing. In other ...

WordPress Filter Hooks | Learn WordPress

In this video, we will cover a brief introduction to hooks, the two types of hooks, actions and filters, what are filters and how to use them, filter priority and argument parameters, and filter hook order. Hooks allow your theme or plugin code to interact with or modify the execution of a WordPress request at specific predefined spots. Hooks ...

Filter Hooks | Learn WordPress

There are two types of WordPress hooks, actions, and filters. In this lesson, we'll focus on filters, but check out the actions lesson for more information on action hooks. What are filter hooks? Filters allow you to modify, or filter, some data at a specific point, which will be used later on.

What is the difference between add_action and add_filter

WordPress offers filter hooks to allow plugins to modify various types of internal data at runtime. A plugin can modify data by binding a callback to a filter hook. When the filter is later applied, each bound callback is run in order of priority, and given the opportunity to modify a value by returning a new value.

WordPress add_filter vs add_action functions, the basics.

An "add_filter" is used to "hook" data, i.e. change/replace. For example, where there is [some-code], change it to some-other-expanded-code. The "hook" is a "function" or "method" for a specific filter or action. More on "hooks" below. WordPress offers filter hooks to allow plugins to modify various types of internal ...

Wordpress filter Vs. action - Stack Overflow

Actions are event based. suppose you want to call a function after submitting a form or page load in that case you will use add_action function. whereas Filters are used to change the current flow. like a page have content "hello this my test content", and you want to show "hello world this is yours test content" to do so you will use filters ...

Filters - Plugin Handbook | Developer.WordPress.org

Filters are one of the two types of Hooks.. They provide a way for functions to modify data during the execution of WordPress Core, plugins, and themes. They are the counterpart to Actions.. Unlike Actions, filters are meant to work in an isolated manner, and should never have side effects such as affecting global variables and output. Filters expect to have something returned back to them.

What does apply_filters (...) actually do in WordPress?

When you attach a callback/action to a filter or hook, then you just add the callback name to global filters array. When then, in code (for e.g. a template, core or plugin file) a call to do_action() or apply_filters() happens, then WordPress searched through the array and calls the callback. The only thing more special with filters than with ...

plugins - Passing a parameter to filter and action functions ...

The correct, really short and most efficient way of passing whatever number of arguments to WP filters and actions is from @Wesam Alalem here, that uses the closure.. I would only add that you could make it even clearer and much more flexible by separating the actual doer method from anonymous closure.

Action Reference - Common APIs Handbook | Developer.WordPress.org

This is a (hopefully) comprehensive list of action hooks available in WordPress version 2.1 and above. For more information: To learn more about what filter and action hooks are, see Plugin API.; To learn about writing plugins in general, see Plugin Handbook.; For a reference list of filter hooks, see Plugin API/Filter Reference. (If you want to add to or clarify this documentation, please ...

What is a Filter in WordPress? How to Use Filters in WordPress - WPBeginner

These action and filter hooks are the foundation of how the WordPress core, themes, and plugins work. They work together to allow developers great flexibility to modify default WordPress events, filters, and actions. Developers can also create their own custom actions and filters so that other developers can extend their plugins or themes.

wordpress: actions, filters & hooks - Stack Overflow

The filter hook that we're interested in in this cases is 'the_title'. So, we add the following line below the function we just wrote: add_filter( 'the_title', 'remove_protected_text', 10); This adds our function remove_protected_text() to the 'the_title' filter. In this case I've used the third argument to give our filter a priority of 10.

Filter Reference - Common APIs Handbook | Developer.WordPress.org

Filter function arguments: URL, type of feed (e.g. "rss2", "atom", etc.). get_comment_author_link : applied to the HTML generated for the author's link on a comment, in the get_comment_author_link function (which is also called by comment_author_link. Action function arguments: user name.

Filter Everything — Product Filter & WordPress Filter

Allows you to sort filtered results by any criteria. Supports color swatches and brand logos. Step-by-step filtering. Vertical and Horizontal layouts, columns. Works in both "Submit button" and "Auto-submission" modes. Ready to use on mobile devices. Compatible with translation plugins WPML, Polylang. Supports AJAX.