A function is a sequence of program instructions that perform a specific task. It is packaged as a unit that can be used wherever the according task should be performed.

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4
votes
2answers
758 views

Removing default image size list in Media Box

I trying to remove unused image size (Thumbnail, Medium, Large) in MediaBox Any function can i use in functions.php ? or some trick ? PS : I know i can use jQuery trick but any better function to ...
4
votes
2answers
6k views

paginate_links() don't properly work in search.php?

I'm using this in my search.php template … <div class="pagination"> <?php echo get_pagination_links(); ?> </div> And this is the function … function get_pagination_links() { ...
4
votes
1answer
2k views

function deactivate_plugins does not exist

I am getting function deactivate_plugins does not exist error when calling this function function deactivateSelf(){ deactivate_plugins(RSD_PLUGIN, true); //gives error: function ...
4
votes
1answer
156 views

WP 4.4. responsive loads normal image after loading the responsive image

I have the 2 new added sized that I am testing: // testing add_image_size('new-small', 500, false); add_image_size('medium-large', 768, false); // just added today for devices support image ...
4
votes
3answers
1k views

How do I replace a function, declared inside a plugin's class, in functions.php?

I want to modify a function in a plugin. It is declared in the plugin's main file like this: class WCPGSK_Main { ... public function wcpgsk_email_after_order_table($order) { ... } } Add ...
4
votes
1answer
245 views

function_exists call in function.php

In the function.php file of the twentyeleven the setup function checks to see whether it exists before running it: if (!function_exists('twentyelevent_setup')): function twentyelevent_setup() { ... ...
4
votes
3answers
3k views

Add class to menu items of one specific menu (nav_menu_css_class)

This code adds an extra class to all my menu items: add_filter('nav_menu_css_class' , 'special_nav_class' , 10 , 2); function special_nav_class($classes, $item){ $classes[] = 'btn'; return ...
4
votes
1answer
602 views

Can I turn off write-in tags/taxonomies?

One of the big problems my site staff has had with tags is the overwhelming number of similar or duplicate tags, due to the write-in ability. I'm about to add new custom taxonomies to my site for ...
4
votes
1answer
171 views

How to not allow users to create new tags, but allow to them to use existing ones

I want a certain role to be able to add new tags, but other users should just be able to use the text bar to search for existing tags. I know I can hide the tag bar in the sidebar, but I don't want ...
4
votes
3answers
6k views

How do I call wp_get_current_user() in a plugin when plugins are loaded before pluggable.php?

The current result is "PHP Fatal error: Call to undefined function wp_get_current_user()" which makes sense, but doesn't help. I need to use $current_user. Here is the code I'm currently using: ...
4
votes
1answer
7k views

Add custom template page programmatically

I'm trying to add template page from a plugin,and my template page is in this plugin folder.Is this posible?Here is my code: global $user_ID; $new_post = array( 'post_title' => 'Test ...
4
votes
2answers
2k views

Enabling Sessions in WordPress 3.0

Im using a wfcart in my WordPress site but for some reason on certain pages WordPress drops the session I'm wondering if there is a way to enable sessions in WordPress 3?
4
votes
1answer
165 views

Keep one user logged for a year?

This has got to be simple: how do I keep one user - my-user - logged in for a year? (I'm checking logged in cookies in the dev tools console). Update 8/16/15 This works: add_filter( ...
4
votes
1answer
227 views

wp_set_object_terms and arrays

I need to add a category to about 2500 posts, and either need to use an SQL query or wp_set_object_terms with PHP. I'm looking at wp_set_object_terms so I can add a category and not impact the ...
4
votes
1answer
119 views

How to add classes to images based on their categories?

I need to be able to: 1.) assign categories to images and 2.) add classes to all images that correspond to their assigned categories. I was able to add categories to images with the following: ...
4
votes
10answers
3k views

disable WP automatically inserted line breaks after an image

I've set medium sized images to a custom size which should allow for both of the images to align horizontally within the post. (The full post width is 880px, medium images are set to 413px.) My ...
4
votes
2answers
2k views

Hide main div if wp_nav_menu is empty

I want to hide the div class "navmain2" if the menu is empty. See code below: <!-- Start main navigation --> <div class="navmain2"> <div id="logo"></div> ...
4
votes
1answer
55 views

Paged Single Post doesn't redirect to the main url after Removing Pagination

I used <!--nextpage--> (Codex) to paginate (split) a few single posts. Now i removed all the nextpage html parts from the posts. everthing looks fine. Unfortunately the old urls like ...
4
votes
1answer
76 views

Adding a text domain to every __(), _e() and __n() gettext call without a plan to create own translations

Is it good to add a text domain as an argument to every __(), _e() and __n() gettext call such like these, even though I'm not planing to create my own translations? __( 'Post', 'my-theme' ); _e( ...
4
votes
1answer
6k views

How to create thumbnails for PDF uploads?

I'm developing a website that needs to allow users, within Gravity Forms, to submit a PDF file and have a JPG thumbnail created of the first page of the PDF that is then displayed in the created post. ...
4
votes
2answers
2k views

How to add the category ID to admin page

I want to add the categories ID to admin page. I call it for my functions.php: require_once('includes/categories_custom_id.php'); The part of code: function categoriesColumnsHeader($columns) { ...
4
votes
2answers
244 views

Notify users whenever a new post is published based on their preference

I have put together a custom registration form on my WordPress site and one of the items on the registration form is an ability to select an interest. Essentially I have the following code from the ...
4
votes
2answers
368 views

current_cat_ancestor Alternatives

It looks like adding current-cat-ancestor class to category list was proposed, but never implemented. The only way I've been able to find so far is to re-create the wp_list_categories() function ...
4
votes
1answer
3k views

Using functions from a plugin in your theme

I am a beginner to wordpress (and to php for that matter). I am trying to understand some of the basics, and building a little e-commerce store using a plugin called "Jigoshop." I'm reading through ...
4
votes
1answer
3k views

Possible to search by author name with default WordPress search function?

I realize improving WordPress's search function is a huge can of worms, but the ONLY additional thing I need it to do is to show results when I search for an author's name. For example, if we have an ...
4
votes
1answer
5k views

adding a filter to a shortcode?

<?php echo do_shortcode('[mingleforum]'); ?> inserts the mingle forum into my content! is it possible to use add_filter() on that?
4
votes
2answers
1k views

Build a content and excerpt grid loop with paging and options for # of posts

What I'd like to do: on index.php, a loop that shows a selectable number of full posts using the_content and then below that shows a selectable number (the number of posts can be hardcoded in the ...
4
votes
1answer
6k views

How to export comments in WordPress?

I want to export my comments to Excel, PDF or Word. The format really doesn't matter, I just want them exported. I tried the Export Comments plugin, the standard one, but couldn't get it to work, I ...
4
votes
1answer
2k views

wp_get_attachment_image returns different image size

It is a bug? wp_get_attachment_image( $attachment_id, 'post-thumb-size-small'); Same code, called in template, and in AJAX call returns same image SRC, but different image width and height. dumb ...
4
votes
1answer
47 views

Preferred Use of home_url()?

This isn't a problem but rather I am just curious to see how others are using this function. The codex does not really say a preferred method of use although it does provide some straight-forward ...
4
votes
1answer
206 views

Customize default settings on new sites on multisite

As the title states i need an approach to change default settings when a new site is created on my wordpress multi site. I guess its easiest to keep the code in a mu-plugin but can a go about having ...
3
votes
3answers
7k views

Get the blog page URL set in Options

I have set the blog to be a different page other than the home page. I want to have a link from single.php to this blog page. Is there any function that pulls out URL for the blog ?
3
votes
3answers
13k views

How to add a data attribute to a WordPress menu item

I'm Twitter Bootstrap and need to add data-toggle="modal" attribute to the a tag of menu link. Upon searching most all results reference doing a walking for Twitter Bootstrap dropdown menus however ...
3
votes
2answers
7k views

How to detect single.php (but not single-portfolio.php)?

When I'm using is_single(); in my <head> section to add some style to website navigation it executes correctly on blog posts but it also executes on single "portfolio" post type posts (so ...
3
votes
4answers
59k views

How to set and use global variables? Or why not to use them at all

UPDATE: My original question has been solved, but this is turning into a valid discussion about why not to use global variables, so I am updating the question to reflect that. The solution was ...
3
votes
8answers
9k views

Adding fields to the “Add New User” screen in the dashboard

I'd like to add the field "Company Name" to the add new user page in the admin panel. I've done quite a bit of searching and have been unable to find details on how to do this. I can easily add info ...
3
votes
2answers
12k views

Adding a second email address to a completed order in WooCommerce [closed]

Before I ask this question, I know there is a (legitimate) hesitation to answer questions here about Woo products since they have their own support and their users should be encouraged to use that. I ...
3
votes
2answers
1k views

hook a functions to change wp-config from functions.php

is there a way to hook / filter or add action that would be printed in the wp-config file? lets say i want to add some simple command like "empty the trash" aka define('EMPTY_TRASH_DAYS', 1 ); ...
3
votes
5answers
9k views

Why isn't is_page working when I put it in the functions.php file?

I have page called "Apple", the page's ID id 2533. In page.php file I have line: echo $bannerimg And this function in functions.php: if ( is_page( '2533' ) ) { // also tested with ...
3
votes
1answer
9k views

Custom page with variables in url. Nice url with add_rewrite_rule

Using WP3.1 I Have a custom page with a WP_Query and the query gets dynamic variables from the url. And i want safe variables and clean urls. Example: ...
3
votes
1answer
1k views

Publish author posts only with editor approval?

I run a multi author blog and i am looking for a non plugin solution. The default author user role in Wordpress can publish posts without any approvel - look at Role Capabilities Wordpress Codex. ...
3
votes
3answers
4k views

Forcing all posts associated with a custom post type to be private

Does anyone know of a way to add code to the functions.php file which will automatically force all posts belonging to a custom post type to be "private" and/or "password protected" with a default ...
3
votes
4answers
10k views

Ajax call always returns 0

I have a problem with AJAX returning 0 always! I have done everything by the book and can't figure out what is wrong? Please help!! Here is my Ajax call: //Pass data through AJAX var ...
3
votes
2answers
2k views

Advantages and disadvantages of using automatic-feed-links

What are the advantages and disadvantages of using add_theme_support('automatic-feed-links') in my functions.php file?
3
votes
2answers
137 views

How to count number of functions attached to an action hook?

I have some actions like this function simple_notification() { echo '<div>This is a notification</div>'; } add_action( 'site_notices', 'simple_notification' ); ...
3
votes
4answers
3k views

How to publish a post with empty title and empty content?

Why I'm doing this you might ask? I'm developing a website for a business with a portfolio where the gallery items are posts. These posts are populated through custom fields and category selections, ...
3
votes
1answer
325 views

Does WordPress Development Mode Exist (with not minified JS)?

A lot of WP JS is minified and therefore it's hard to be analyzed in the Console. Is there any way to have all scripts uncompressed?
3
votes
1answer
5k views

Wordpress Enqueue for homepage only, functions.php, wp-framework

I'd like to replace my: if(is_home()) { wp_enqueue_script( 'homestuff', get_theme_part( THEME_JS . '/home.js' ), array( 'jquery' ), null, true ); wp_enqueue_script( ...
3
votes
3answers
4k views

Add new “Insert Into Post” button with another function

Problem: Add a hook that automatically adds a short tag to video attachments when inserted from the Media Library (video) tab: Update: This works under the 'Media Library' tab — and doesn't break ...
3
votes
5answers
3k views

Removing custom background and header feature in child theme

I am creating a child theme using twentyten as my base. I am looking for a way to remove the features of adding custom header and background without touching functions.php file in the parent theme. ...