How to get list of all hooks of current theme / plugin?

Question

I want to get the list of all available hooks from active theme / from a specific plugin.

I was tried to get it from global variables $wp_actions & $wp_filter But, They are showing all registered hooks.

E.g.

global $wp_actions, $wp_filter;
echo '<pre>';
print_r($wp_filter);

E.g. If theme or plugin register the action in after_setup_theme then it'll list in [after_setup_theme] key from global $wp_filter.

I was tried one of the best plugin Simply Show Hooks. But, It'll also, show all the registered hooks.

Is there any way to get the specific hooks from theme / plugin?

Answer 1

As of 2016-09-25, there is no ideal solution.

The WP-Parser does the job, but you need to set up a special WP site to run it. WooCommerce's Hook-docs is something much simpler, and can be easily tweaked.

I just wrote a long comment on the topic here:

https://github.com/ApiGen/ApiGen/issues/307#issuecomment-249349187

Answer 2

As of 2019-10-16, the ideal solution would be: https://wordpress.org/plugins/query-monitor/

After installing the plugin, head over to your homepage (or wherever you need to get your list of hooks) and open Query Monitor from the admin bar.

Then, open Hooks & Action:

You will be able to view all the hooks in action, along with their component (e.g. plugin). You will also be able to filter by component.