Linked Questions

30
votes
5answers
31k views

How to know what functions are hooked to an action/filter?

Is there a way to know what functions are hooked to a particular hook? For example if I'd like to know what functions are hooked to the wp_head hook.
14
votes
2answers
6k views

Altering the appearance of custom taxonomy inputs

I'm working on a site that will make use of a few custom taxonomies (for custom post types). I've chosen to make some of the taxonomies hierarchical because the method of inputting values (checking ...
12
votes
4answers
3k views

Hooking in to plugins

I'm working on a plugin that would ideally be able to do things when a user does something through a different plugin. I can add custom hooks in those plugins but obviously this wouldn't work well ...
9
votes
1answer
5k views

Restricting a Plugin to Only Load its CSS and JS on Selected Pages?

I'd like to cause a plugin to restrict its loading of CSS stylesheets and JavaScript JS files to only those pages for which they are needed. An example for my question is the plugin Contact Form 7 ...
6
votes
7answers
749 views

Is it heavyweight plugins or lots of plugins that make a site slow?

I've often heard that having a lot of plugins will slow down a WordPress site. This makes sense of course, as the more code that executes, the longer it will take. I'm wondering whether the slowness ...
2
votes
3answers
757 views

Get list of available wordpress actions

I don't think there is, but I was wondering whether anyone ran into this issue before. Is there a function (or variable) call to get all registered WP Actions and all registered WP Filters? My ...
2
votes
2answers
175 views

Too many actions/filters!

New to wordpress here. The concept of actions/filters in and of itself is not too difficult to grasp. What I am overwhelmed by is the HUGE amount of actions and filters available. When I am looking at ...
1
vote
3answers
583 views

Good tools for locating hooks in a wordpress page/admin interface/blog post?

I've recently started using the Hikari Hooks plugin for Wordpress as it seems to allow you to get a good idea of what do_actions are being called on the page, so that you can easily find out where ...
1
vote
3answers
312 views

How to find hooks as per Just-In-Time approach?

How can I follow Just-In-Time approach in hooking up my function to an action? I mean everybody just attach the functions to a very early stage like init which leaves the scope of optimisation. I saw ...
1
vote
1answer
288 views

Executing Arbitrary Code at a Specific URL without Creating a Post or Page?

I am trying to figure out which hooks I can tie into in order to read the incoming URL prior to the query actually being run. A quick look tells me maybe wp_loaded or posts_selection would be good ...
1
vote
2answers
200 views

how do you prevent showing a particular category on the admin dashboard for specific user roles?

I'd like to prevent the "Featured" category from appearing for certain user roles. To be specific, I want only the admins and editors to be able to see and thus select or unselect that category. ...
0
votes
0answers
318 views

Modify request query string before plugins

I have an issue where a plugin allows some behavior I don't like. Basically, I want to grab and modify a request query string before the Ultimate Member plugin processes it. Basically if someone isn't ...
1
vote
2answers
31 views

How to know what filter to use and how to use it?

How can I know what filter I can use to change anything and what my function have to return ? For exemple, sometimes I have to add a or a to a post title. It works (WP doesn't sanitize html tag ...