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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3
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1answer
2k 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 ...
2
votes
2answers
3k views

How do I “unhook” / de-register jQuery so that it's not called as part of wp_footer();?

I need to "unhook" jQuery from my wp_footer() ... it's being called automatically and I'm looking for something I can add to functions.php which prevents it from being called a second time in the ...
2
votes
2answers
1k views

Add class to Categories Widget

I have a few default widgets which I am using in a custom sidebar and I'd like to edit its output in my functions.php file. Currently the categories widget and blogrolls are generating an unordered ...
2
votes
1answer
1k 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.
2
votes
1answer
1k views

How do I display a tag cloud with both post tags AND a custom taxonomy?

Using wp_tag_cloud(), how can I display a single tag cloud that incorporates both regular post tags and a custom taxonomy?
1
vote
1answer
82 views

Set first oembed in post to a global variable or function

I have a function that gets the first oembed in the post. I got the code from this related post. add_filter('embed_oembed_html', 'my_function',10,4); function my_function( $cache, $url, $attr, ...
1
vote
1answer
3k views

Change ul class=“children” for wp_list_pages?

Hello I'm using this code to print a list of Pages and Subpages: <ul> <?php wp_list_pages('title_li=&depth=2&child_of='); ?> </ul> It outputs: <ul> ...
1
vote
1answer
390 views

Add custom image sizes to media uploader

I want to add custom image sizes to the media uploader: In order to do this, I use the following code (comments are there for convenience): // this function adds the custom image sizes to the ...
1
vote
3answers
479 views

Delete post revisions on post publish

Is it possible to delete post/page revisions from the database when a post/page is published? 11/05/12 Answer: See the plugin below by bueltge I want to do this on a site with 5,000 posts and ...
1
vote
1answer
986 views

Passing variables to templates (alternatives to globalizing variables)

I want to make my WP code simpler (there's some mess within header.php, page.php etc.). So, for example, I want to set something like this global: $foo = get_option('foo'); So $foo will work ...
1
vote
1answer
4k views

Is it possible to remove the main rich Text box editor?

I am using the simple fields plugin to provide additional rich text editors and have no need for this 'main' text editor box on any of my 'page's I have tried the following code in my functions.php: ...
0
votes
2answers
3k views

Wordpress wp_head() crap

I know, wp_head() is important, but it inject so much crap into the header, i like to get it out... and just add manually the 2-3 line of code i need.. BUT, and there is always a but, i need the ...
6
votes
1answer
1k views

Why does WordPress add 0 (zero) to an Ajax response?

Unless I end Ajax processing function by exit() or die(), the Ajax function receives desired and correct output but following by 0. Any idea why is that happening? Is that meant to be like that or ...
5
votes
2answers
122 views

Is there a hook or function I can use to display all theme files being used on a current page?

Basically I want to be able to see the names of files on the front-end - not just templates e.g. category/page templates, but the actual theme files like header.php/sidebar.php/footer.php and so on. ...
5
votes
2answers
2k views

Modify Admin Bar Link

Starting on line 474 of /wp-includes/admin-bar.php there is a function that is declared as the following: function wp_admin_bar_new_content_menu( $wp_admin_bar ) What it does it generates the + New ...
4
votes
1answer
4k 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
2answers
642 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 ...
3
votes
2answers
250 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, ...
3
votes
1answer
1k views

Extending auth_cookie_expiration based on user role

I'm trying to extend the lifespan of the authentication cookie, but only for administrators. My code in functions.php is: add_filter( 'auth_cookie_expiration', 'change_admin_cookie_logout' ); ...
3
votes
2answers
1k views

Auto close (hide) custom metabox / set default state

I am using the WordPress function add_meta_box() to add my own custom metabox. So how can I auto close/hide on page open ? Currently, I just add a CSS class closed to metabox's <div> element ...
3
votes
3answers
40k 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
1answer
3k views

Get menu object from theme_location

I'd like to get a menu object from its theme location argument. My goal is to output separately the menu name and its items name, url and description. Example of what I'm looking for : $menu = ...
2
votes
1answer
2k views

Remove “Category:”, “Tag:”, “Author:” from the_archive_title

I have the following code in my theme's archive.php: <?php the_archive_title( '<h1 class="page-title">', '</h1>' ); ?> This gives me titles like "Category: Russia", "Tag: ...
2
votes
1answer
546 views

How do I add a custom post type to the Featured Content in twenty fourteen theme?

This wpmudev post sums up my feeling exactly about twenty fourteen: Featured Content does not support custom post types – only posts are selected even if the custom post type supports the Tags ...
2
votes
2answers
554 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 ...
1
vote
1answer
32 views

The best way to customize “nav-menu-template.php” to add <input> if the 'link_before' is “checkbox”

I would like to add a 'link_before' control for a wp_nav_menu(), like that: if ( strpos( $args->link_before, 'checkbox' ) == true ) { $args->link_before = '<input id="toggle' . ...
1
vote
2answers
57 views

Hide a menu-item and its submenus and display a 'Log in' link if the user is logged out

I need, somehow, to enable that when you logout, that 'My Account' item is getting hidden from the navbar, and instead it displays a 'Log in' link. The item 'My Account' also have submenus with the ...
1
vote
1answer
92 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
2answers
685 views

Make WordPress size and name images for Retina.js

I'm a huge fan of the way retina.js works for high pixel density displays. Essentially, when it's loading image assets (via <img> or css image) it will check if there's a @2x suffix version of ...
1
vote
1answer
115 views

Unregister Nav Menu with fallback?

I am trying to create a child theme so theme updates are much easier. I want to remove the parent theme menus and add my own. I know I can modify the header.php file (where these menus exist) and ...
1
vote
3answers
6k views

get php variable from functions php and echo it in theme template files [closed]

This may seem like a silly question but I cannot figure this out. I've created a variable in my functions.php - and I'm trying to echo it in my template files. I'm guessing it's because of scope. ...
1
vote
1answer
739 views

Need to add class=“lightbox” for every single post image

I got a theme that has lightbox built in, but only for galleries and featured images, not single images. It just needs to have class="lightbox" added to the images source. I'd like a simple function ...
1
vote
1answer
268 views

Target a certain page within wordpress backend (admin) i.e. Pages > About

How can i progammatically see if the page that is currently open in the wordpress admin is 'About-Me'; I wish to run specific functions depending on the page the user is editing in the ...
1
vote
1answer
3k views

Edit the_content function

I want to edit the default function the_content(). I know i can add_filter('the_content', 'with_my_function') but im having trouble outputting the old content with mine. Heres an example of what im ...
1
vote
1answer
1k views

Call to undefined function get_blog_option()

In the functions.php of my plugin I've added the following code: function relativePathForUploads( $fileinfo ) { global $blog_id; $path = get_blog_option($blog_id,'siteurl'); ...
1
vote
2answers
1k views

post meta data clearing on autosave

For starters I am using this GREAT answer to achieve custom post types as well as a custom way to insert those post types into other pages, you can view that answer here: Custom field/meta populated ...
1
vote
2answers
370 views

VERY new to coding - keep breaking site trying to add to functions.php

I really appreciate everyone on this site who takes the time to answer questions here. I've learned a good deal already reading, but am sure I could learn even more if I could get past at least one ...
1
vote
2answers
457 views

How to let a single post have its own domain name

I am not sure which solution here would work best as a solution but what I am looking for is just a simple way to enter an optional domain through a metabox on the page edit screen and then just ...
0
votes
1answer
26 views

Display random text from a file with the WP built-in AJAX API

I want to use a solution by @toscho to display and rotate some quotes. The unchanged code works very well, but if I replace the protected function get_rand() { return rand( 1, 1000 ); } with ...
0
votes
1answer
33 views

Formatting post content to exclude gallery

I have this code which takes the first gallery for a post's content, and formats it with more code preparing it for slideshow usage with css and js. $gallery = get_post_gallery_images( $post ); ...
0
votes
1answer
49 views

Exclude Custom Post Type & Pages From Auto-Tag Function

I am happily using this bit of code to auto-tag posts by author (thank you again cybmeta): add_action( 'save_post', 'add_authors_name'); function add_authors_name( $post_id ) { $post = get_post( ...
0
votes
1answer
41 views

Is it possible to be more page/post specific with admin_enqueue_script?

I am using this code to load a stylesheet in the admin, but only on post.php related pages: function my_enqueue_for_post_pages_only($hook) { if( 'post.php' != $hook ) return; ...
0
votes
2answers
629 views

How to hook into the quick edit action?

I found this solution to automatically assign parent terms when a child term is selected, which is working fine for the save_post hook: add_action('save_post', 'assign_parent_terms'); function ...
0
votes
0answers
424 views

Create thumbnail on PDF upload with Gravity Forms

I'm working with some great code that was provided recently to create an image thumbnail from a PDF upload, and I'm now trying to implement this in the functions file so that it can be applied to any ...
0
votes
3answers
3k views

Redeclare function (override) [closed]

What is the best method, to change the previously declared function into the new one? for example, there is already declared: function smth(){ echo 'aaa'; } and i want that it displayed not aaa, ...
0
votes
2answers
2k views

Only show category to certain user levels without plugin

I'm building a site for some army guys to share photos, and one thing keeps stumping me. They have some photos that they'd like everyone who is signed up for the site to view, and others that just ...
0
votes
1answer
2k views

Echo a div to header.php from functions.php

Within the section of header.php I have a div structure <div id="header"> <div id="masthead"> <div id="branding"> ... I want to add a div within "branding" - I can do this ...
0
votes
2answers
338 views

Automatically assign a custom post to a custom taxonomy based on custom field value

We have a custom post type called listings, and each listing has a custom field zipcode (which is a 5 digit number). We then have a custom taxonomy area, which can be "New York", "Los Angeles" etc. ...
0
votes
1answer
185 views

Theme Demo in live Site

I don't know how to explain this question but let me try, Just Imagine I've a website called xyz.com and in xyz there are 10 themes uploaded and in homepage i'll show name & screenshot of all 10 ...
0
votes
4answers
294 views

Problem with <code> tag

Where you can see it: http://themeforward.com/demo2/functional-codes The first button is my code, as it should appear. The second button is within <pre><code></pre></code> ...