A type of hook that provides a way for content to be overridden programatically

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3
votes
3answers
5k views

How to set custom cookies before output

What's a surefire way to check/set cookies before the php headers are sent? Is there an action or filter that would be the best place to hook a setcookie() function?
2
votes
1answer
195 views

Wordpress Media mime type filter problem 4.0

I have added new mime types with the 'post_mime_types' filter eg. PDF, doc, mp3 etc... Filtering by custom mime type on the upload.php page in media grid view works as expected but in list view it ...
2
votes
2answers
411 views

Filtering 'the_title' with option to return subhead?

Problem: The WordPress iPhone app (and other WordPress-related smartphone apps) do not allow for much other than the Title and Body fields (i.e. no access to custom fields). Goal: My current ...
2
votes
3answers
4k views

How do I add the featured image to the_content after the first paragraph?

My problem: I'm trying to create a filter that will add the featured image of a post to the_content, so that I can have the first paragraph of the_content displayed before this image. What I basicly ...
2
votes
1answer
382 views

Adding posts of custom type into the main feed

I'm having some trouble with a subject that seems to be pretty basic, so I'm starting to feel (a little, only a little) dumb :-) Here's the thing: I want my main feed to include the posts and other ...
2
votes
2answers
351 views

Load different template file when condition met?

If I visit a page on my WordPress site, WP goes and determines what template file it should use based on the template hierarchy. If I'm doing some logic checking in the hook init and say my ...
2
votes
1answer
372 views

Hook different functions to the same filter conditionally OR Pass additional arguments to existing filter?

Is it possible to hook 3 different functions to the same filter conditionally, like: <?php if(a){ add_filter('the_content', 'fnc_1'); } else if(b){ add_filter('the_content', 'fnc_2'); } ...
2
votes
1answer
899 views

Multiple post types in archives (filter?)

I'm trying to get all custom post types to appear in my archive sections on a site, including monthly, tagged, author archives. At the moment, I've thought of something like: ...
2
votes
2answers
553 views

Best way to programatically add “rel” attributes to page and post images

For single posts and pages, I would like to add certain rel attributes to all the images on the contained therein added with the "Add Image" functionality on the edit screen. The attribute would be ...
2
votes
1answer
2k views

Hijacking the URL for filtering

Right, here's the deal. I've got a loop of which displays news posts, these posts can belong to special categories (not normal categories) and I want to be able to filter by them. If I wasn't too ...
2
votes
2answers
2k views

What params are available with the_content filter?

I am looking for what params are passed to my filter function. Where can I find such info in the codex? http://codex.wordpress.org/Plugin_API/Filter_Reference/the_content didn't provide much info I ...
1
vote
2answers
1k views

How to apply the “retrieve_password_message” filter?

I would like to change the body of the password reset email that WP sends out with something more friendly. I am trying to use the "retrieve_password_message" filter but I am messing it up. Can ...
1
vote
1answer
90 views

Removing user contact methods works from functions.php but not from a plugin

I'd like to remove user fields and I used this code: add_filter( 'user_contactmethods', 'newfields' ); function newfields( $user_contact ) { unset($user_contact['facebook']); ...
1
vote
3answers
658 views

Change content before writing to database

I've searched around but I can't quite pin down the answer for this. I am attempting to use the content of a custom field as post_data and save it to the database as such when a post is created or ...
1
vote
2answers
3k views

wp_title() empty on a static front page

I'm trying to use wp_title() to create a heading for my pages, but I'm using a static front page and, while all of the other pages render the title properly, the front page won't. This is what I'm ...
1
vote
1answer
207 views

filter the_title problem in nav

Hi I have a problem with the_title filter: I have this code at my constructor: add_filter( 'the_title', array($this, 'change_title') ); and this as callback (for testing purposes) public ...
0
votes
1answer
107 views

How to enable visual editor when editing comments on the dashboard?

For editing a comment in admin pages the editor is only html, can we modify the edit comment page with a filter to include visual editor too?
0
votes
2answers
364 views

How do I use the 'http_request_host_is_external' filter

I'm having a really hard time trying to use the http_request_host_is_external filter. For some background, I'm trying to set up a separate server to handle private plugin and theme updates. The ...
0
votes
1answer
318 views

Does the 'nav_menu_css_class' filter accept 2 or 3 arguments?

I've been using the nav_menu_css_class filter in one of my plugins, implemented as: add_filter( 'nav_menu_css_class', 'wbwcrf_nav_menu_css_class', 10, 3 ); function wbwcrf_nav_menu_css_class( ...
0
votes
2answers
2k views

Add_filter rel=“prettyphoto” to WP3.4.1

I know there have been a couple of questions in relation to this and had a look at them, but mine differs slightly on the problem experienced and the code. I am basically building my first theme and ...
0
votes
1answer
596 views

Unfiltered html in widget title not working

function update( $new_instance, $old_instance ) { if( current_user_can( 'unfiltered_html' ) ) { $new_instance['title'] = strip_tags( $new_instance['title'], ...
0
votes
2answers
959 views

Conditional custom menu?

I'm trying to create a custom menu that displays a <li></li> when a user is logged in, and not display it when they're not. I have this so far, but it's not working. Does anyone know how ...
0
votes
1answer
647 views

display tag slug as class per link in tag cloud

I would like to filter wp_generate_tag_cloud so each of the tag links include the slug as a class. More specifically, I would like to output "tag-" + the tag slug. Currently what is assigned as the ...
0
votes
1answer
357 views

How to remove the RichText Meta Box

How can I remove the rich text box editor in WordPress? I have used the remove_meta_box function specifying the boxes ID, but it does not work like it does for other core meta boxes: The code I ...
0
votes
3answers
2k views

Ajax, filters and shortcodes

could you figure out why I'm unable to get shortcode filters applied in ajax inclusion of posts? Let me explain better: I've managed to include a post from within another post, through ...
6
votes
2answers
2k views

Earliest hook to reliably get $post/$posts

What's the earliest possible action I can hook into where I'll be able to access the global $post/$posts variables on both the front and back ends? I've tried looking through the Codex reference, Adam ...
5
votes
1answer
394 views

Limit Media Library to Given Folder

I have made a plugin that uses the Media Library to allow users to upload files to a specific directory - using the upload_dir filter. I would like to know if there is a way (i.e. a filter) I can use ...
3
votes
1answer
133 views

Using hooks to place content in theme dynamically

Alright, so I think I may be getting a little too complicated on this, but I basically want to know if this is possible. I am using a content slide function where I display some thumbnails within the ...
3
votes
1answer
605 views

Hide custom image sizes from media library

I want to hide a few custom image sizes from the media uploader: The following code (posted here) works only for the default image sizes: function remove_image_sizes($sizes) { ...
3
votes
2answers
1k views

How To Determine If A Filter Is Called In A Sidebar/Widget Context?

So I have a plugin that appends or prepends an enhanced author biography to the content of a page/post/custom post type. It does this by hooking to either the_content or the_excerpt and ...
3
votes
3answers
3k views

How to hook wp_list_pages?

How can I hook the wp_list_pages function so that it reads a value of a custom field and displays it instead of displaying the page title?
3
votes
3answers
3k views

I'm using a filter to remove the <p> tags auto wrap, but there still wrapped elements?

I have this in my functions.php: The images inside the slider were added as custom post types called "Page Content." I'm not sure if the filter only applies to the main Posts. /** * Remove ...
2
votes
1answer
58 views

How can I get next/ previous post links to order by a filter (by the last word of the title)?

I am trying to use the next/ previous post link functions by Wordpress to move between posts of a custom type based on the surname of a person. The custom type represents a person with a post title ...
2
votes
1answer
92 views

Changing Posts Per Page and offset with pre_get_posts

I have a filter using pre_get_posts to change the number of posts per page from 4 on the news landing page to 8 on all other pages (page 2, 3, etc). However I don't seem to have got the offset ...
2
votes
1answer
3k views

AJAX filter posts on click based on category

This is my first foray into AJAX, I've been splicing bits of code from various tutorials which probably hasn't helped. I have a list of categories on my homepage (index.php) and a list of the most ...
2
votes
2answers
1k views

Permanently remove first image from posts

I have around 2,500+ posts on my site where I've inserted images using the traditional method into the post content itself. In upgrading to a different theme, the single post page now displays the ...
2
votes
2answers
518 views

Hook for post permalink update

I would like to know what hook should I used when the permalink/url of a post is modified. My goal is to get the old permalink and new permalink so I can used it for my plugin. Thanks. [EDIT] Just ...
2
votes
4answers
2k 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 ( ...
2
votes
2answers
3k views

Add placeholder attribute to comment form fields

I have been trying to add to the default WordPress comment form. I need to add placeholder="" to each field. I can't figure out the filter. I don't get any errors but I don't see the placeholder ...
2
votes
1answer
1k views

Custom search filter causes menu and query_posts problems

I'm using a custom search filter (using my custom query var type), like so: function fteh_pre_get_posts( $query ){ if( isset( $query->query_vars['type'] ) ) $types = explode( ',', ...
2
votes
1answer
5k views

Setting title using wp_title filter

I want to do something very simple but I'm stuck finding where in WordPress I need to perform this. When someone on my WordPress site visits a blog post page I want the title in the blog post to ...
2
votes
1answer
740 views

How do I add a current class to the current post?

I have this list set up of the latest 7 posts: <ul id="post-list"> <?php global $post; $args = array( 'numberposts' => 7 ); ...
1
vote
1answer
404 views

Customize the “Registration complete. Please check your e-mail.” message on WP 4.0

How do we customize the "Registration complete. Please check your e-mail." message that appears when registering on WordPress 4.0? In previous versions, Dave Ross solution worked: add_filter( ...
1
vote
1answer
126 views

Is it possible to add a filter for the output of nav-menu items in admin?

I want to remove certain input fields on the admin screen for nav-menus for specific menu positions. I've used filters to filter front-end output but not for admin output. Is there a filter available ...
1
vote
1answer
247 views

What to use instead of the content_save_pre filter?

I read on Adam Brown's website that the content_save_pre filter is depreciated as of WordPress 3.8 - is this true? It doesn't say it on the official codex page for content_save_pre so I'm skeptical. ...
1
vote
2answers
65 views

Calling apply_filters on non-documented hooks

I have been trying to learn how to write plugins and I thought the best way would be to look at other plugins. I was taking a look at this one and the first lines /** * Plugin Name: Media Library ...
1
vote
2answers
273 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 ...
1
vote
1answer
107 views

How to hook some Unicode texts into calendar widget safely?

I collected a good numerals replacing function for WordPress calendar: function make_bangla_number($str) { $engNumber = array('0','1','2','3','4','5','6','7','8','9'); $bangNumber = ...
1
vote
1answer
170 views

Using ob_get_content to get_search_form puts into infinite loop

I am trying to change the look of my searchform. It basically needs to have two text fields. I want this to be in form of a plugin, which anyone can activate. SO obviously I do not have any control ...
1
vote
1answer
224 views

Remove class that has been added by parent theme

My parent theme generates the following class in body: style-cupcake. I don't want that. The best way to get rid of this is by adding my own functions in a functions.php file in my child theme, right? ...