Method by which plugins and themes extend core WordPress functionality.

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2answers
67 views

How can i do something after head like adding a hook for after head but before post

What i mean is i am trying to add breadcrumbs to my blog and i thought of adding it before content or after title but there's an issue with that - on archive pages or category pages the breadcrumbs ...
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1answer
70 views

Question about how do wordpress filters/actions work

I have a question that I'm curious. In WordPress we can add a filter or action like this code: add_filter($filter_Name, $function_will_be_hook); add_action($action_Name, $function_will_be_hook); ...
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1answer
148 views

Change the footer text on the login page

I am customising the login page and would like to alter the footer text that takes the user back to the website. Ideally and as an example, changing it from the first image, to the second just below: ...
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4answers
550 views

Filter specific shortcode output?

Is there a hook in WordPress that I can use to filter the output of a specific shortcode? Something like this: add_filter('shortcode_output', 'my_filter_function', 2); function my_filter_function ( ...
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2answers
210 views

How to update WordPress core or themes and still have my child theme hooks work

I made a child theme based on the WordPress twentytwelve theme (i.e., the WordPress 'twentytwelve' theme is its parent). Some of the modification were done very simply by overriding style, using my ...
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2answers
28 views

Is it possible to add an action to the currently running action?

My question is very simple but I haven't found this answer yet. Here's an example: class MyClass { public function __construct(){ add_action('init', array($this, 'init')); ...
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3answers
5k views

Woocommerce Product Category Widget - hide categories that have no products in stock

I'm using WooCommerce on my Wordpress site, and have a widget in the sidebar showing all product categories. It's setup to hide empty categories, and that works well. However, it still shows ...
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2answers
193 views

Creating a function that receives the taxonomy terms that have been changed in a custom post type

Ive been looking into actions and hooks etc... from wordpress, but cant seem to do a very simple thing. I just want to execute a function whenever a post is updated, and within the function I want the ...
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1answer
56 views

How to check if upload window came from the featured image link?

I need to verify if the media-upload screen came from a click on the "feature image link" on the admin screen. How can i do it? I've already change the way the uploader works , but I need to check ...
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1answer
112 views

How to Remove the “Restore” Link in Quick Edit?

I want to know is there any hook to remove the Restore link in the edit page - trash page? /wp-admin/edit.php?post_status=trash I know I can hide it with a css/jquery trick, but I prefer to use a ...
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1answer
38 views

Is there any way to allow a plugin to write over a previous version?

When installing a plugin, it will not install if the directory to which it is attempting to install already exists. This means that users of our plugin must first manually deactivate and delete the ...
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2answers
2k views

Adding custom text in items titles from wp_nav_menu()

I need to add something after each title of a specific menu called by wp_nav_menu() I tried add_filter('wp_nav_title', 'testing_stuff'); with function testing_stuff() { $item->title = ...
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2answers
156 views

how to determine how many and what kind of arguments are passed to hooks

I am not able to understand a very logic behind add_action / add_filter Consider following example: function SearchFilter($query) { if ($query->is_search) { $query->set('post_type', ...
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1answer
439 views

How can I tell if I'm on a login page?

There are functions for is_home(), is_blog() is_single() etc... What's the best way to tell if I'm on a page that is requesting that I login? I guess that would just be the wp-login.php page.
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1answer
703 views

functions.php conditional tag - only show in single.php?

//Geo Map add_action( 'woo_post_inside_after', 'my_geo_mashup' ); function my_geo_mashup() { global $post; if ( in_category('listings') ) { echo GeoMashup::map(); } } Works to ...
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1answer
967 views

How to check if certain plugin exists and in expected version

I've created plugin that goes to wordpress plugin repositories. Now, I need to create another plugin (sub plugin or child plugin you may call) that require this certain plugin to be already installed ...
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2answers
25 views

apply_filters/do_action tag characters limit

Does apply_filters/do_action $tag name have a characters limit? Can be any problems if the tag name is way too long? I ask this because I know that WP transients have a limit of 45 characters. FYI, ...
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2answers
97 views

Define custom Page Template without its own .php file

Is there any way of defining a Page Template from some function/filter/hook, without having any .php file containing the comment at the top of the page to declare the Template Name? For example, ...
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1answer
60 views

How to hook in after user's registration email has been sent?

I want to redirect to a page after the user's registration email has been sent. What is the correct hook? user_register is too early, that is the user is entered into the database but the email ...
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1answer
133 views

Setcookie works on admin but not front end

I have a simple function to set a cookie to the value of whatever parameter is attached. For example, if I visit http://example.com/?devsource=http://dev.example.com/ it should set the value of the ...
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1answer
41 views

How to find a callback attached to a bbpress hook?

bbpress has a large number of callbacks attached to various hooks. I am familiar with this feature at the wordpress level but I am unable to locate where bbpress registers a large number of these ...
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2answers
63 views

How to place HTML below the title of the (custom) post overview

Edit: Yes, I know, I provided an answer to this question myself. However, I'm still interested in other solutions and/or comments on the one I found. Is this how you would do this? Are there any other ...
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1answer
90 views

Filter or action hook to insert content on admin pages before </body> tag

I am developing an administrator plugin and want to be able to write some HTML content just before the last body tag . This content will initially be hidden then displayed with javascript when a user ...
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1answer
63 views

Redirect logged in users if they are on a specific page

I'm trying to prevent a user access besides the admin to the registeration page and reset password page if they are already logged in. I have the following: function redirect_loggedin_users() { // ...
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2answers
1k views

Customize user account activation message

During the process of a user creating a new account, once they click on the link in the activation email, they receive the message on the login page: Your account is now active! Username: ** ...
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1answer
82 views

Get current page_id before loop, in functions.php

In the Shoestrap theme, you often change content by using hooks. I want to add the following to functions.php but it doesn't work... // in functions.php if ( is_home() ) { add_action( ...
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1answer
101 views

Should I use function_exists() and/or add_action() in theme development?

I'm trying to get my theme ready for publication on WordPress.org I got this feedback: function_exist() it is not preferable 3.0 design Now I wonder what I'm doing wrong. In the current ...
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2answers
146 views

How to trigger the core WPLANG to make automatically set a language when the theme is activated? [duplicate]

I'm developing a theme especially for Bānglā blog posting, and it'd be under GNU license. I questioned about a Calendar Widget translation with some problems today, and got a comment saying: I'm ...
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1answer
181 views

Set template based on query in URL

I want to be able to force WordPress to load an page/post based on a query in the URL. www.mywordpresssite.com/posts/myarticle?template=custom This URL should load the myarticle post using template ...
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1answer
233 views

How do I successfully create a hook for an email override?

I'm creating an online apartment rental application using Visual Form Builder Pro. I need to have completed forms go to certain managers based on the property selection. Once a user selects a ...
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1answer
203 views

Remove rewrite rules generated by plugin during deactivation‎

I have a simple plugin like the following add_action('generate_rewrite_rules', function ($wp_rewrite) { $wp_rewrite->rules = xxx + $wp_rewrite->rules; }); if (is_admin()) { ...
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2answers
234 views

Add site options UI in Multisite Sites > Infos page

I want to add meta fields for the sites in my network (such as a thumbnail and a category). I know how to do this using get/add/update_site_option, but I'm wondering where I could put the UI to manage ...
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1answer
332 views

How to remove a metabox from menu editor page?

I am not sure if it is much different for any page but I am wondering how to remove a metabox from the appearance>menu page without having to go into the wordpress core files and remove it. Is there ...
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1answer
221 views

Better post meta efficiency?

I work with websites which require using Post Meta for Post Objects within a particular Post Type. I often add a Meta Box to a particular Post Type, to provide additional settings for the new Post ...
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1answer
193 views

Alter image output in content

I'm trying to implement the JAIL javascript into my WordPress install. The javascript requires me to add a data-attribute and change the output html of images. I have been looking through the codex ...
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1answer
268 views

Count singular post views automatically

I'm trying to add some function to each loop called in the themes. What I'm doing is I add a function to count post view from here post views without plugin, to use the function I need to add this ...
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1answer
127 views

Checking post format during xmlrpc_publish_post

WordPress apparently stores post format information outside of the $post object. During publish_post this isn't (usually) a problem because you can check on formats via get_post_format( $post->ID ) ...
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2answers
149 views

Strict tag list - user should choose only existing tags for posts

While selecting tags for the posts the user is able to create new tags on fly. For example we have the tag 'animal' but the user misstpye it as 'aminal' - and Wordpress creates it. In our blog the ...
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1answer
644 views

Filter all html output

I would like to make sure no email address is published in plain. So i developed a plugin that replace all email addresses by a spambot-safe alternative. But some users put their email address in ...
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1answer
514 views

Add custom column in custom post type edit page

I am using the Content Scheduler plugin to control the post expire. The plugin will add a expiry date column on the wp-admin/edit.php in page and post. However it doesn't show in custom post type page ...
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2answers
1k views

How to get post ID in post_updated action hook?

I want to execute a function, myfunction() [hypothetically named], whenever a page is updated in the admin. The function doesn't do anything to the content that is saved—it just runs an unrelated task ...
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1answer
117 views

Showing Notifications While Activating Plugin

I want to give errors like this, while activating my plugin. Which hooks should i use ? Can you share simple examples ? In shortly,when user activate my plugin, is a directory's CHMOD isn't 777 , ...
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1answer
3k views

Changing “Lost Password Email Link” to custom password reset page

On the Wordpress site I am working on, subscribers will not be allowed to see anything in the backend at all. Because of that I am creating a custom pages for the Wordpress login page that subscribers ...
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3answers
528 views

Two-step login process - Is it possible?

Is it possible to do the following with Wordpress (without hacking too much code - I would like to make this a general plugin using simple hooks)? Log in with the username/password. If ...
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1answer
361 views

Hook any php file into the wordpress api

Say I just have a dumb .php file sitting on my WP server and I wanted it to access WP info through the API, how would I go about doing that? For example if I wanted to call bloginfo('url'); As I ...
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1answer
1k views

hooks & filters and variables

I was updating the codex page example for action hooks, while playing around to get some reuseable functions done (originally for some Q over here @WA). But then i ran into a problem i wasn't aware of ...
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1answer
469 views

Event Calendar using insert_post_data after save_post and insert_post after post_transition draft_to_schedule

OK, I'm taking on the dreaded task of developing an event calendar for my site and have gotten a bit stuck. I'm open to any and all ideas but here's what I'm doing and what I'd like to do. I'm ...
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1answer
17 views

Wordpress capabilities and restricted categories access

I've a Wordpress blog to share content with some people only. Users has to login to access this website. I created new roles and new capabilities on this blog. I've got some articles which belongs ...
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1answer
44 views

Plugin activation hook in an abstract class

I would like to create a common abstract class to use for every WordPress plugin that I develop. As a part of the class' initiation process, I would like to fire the activation hook which calls an ...
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1answer
142 views

Remove “Get Shortlink” button in admin of custom post type

I want to remove completely this section under my title in my custom post type. (I don't need this because I use this only for content management). With this piece of code I can remove the ...