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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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 ...
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2answers
4k 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 ...
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3answers
33k 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
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2answers
8k views

Get the ID of the page a menu item links to?

I am currently using a custom walker to customize the output of wp_nav_menu(), and I am trying to add additional information to the <a> tags. What I want the output for each menu link to look ...
3
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4answers
5k 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 ...
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3answers
3k 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
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2answers
98 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
2answers
5k 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() { ...
3
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1answer
4k views

plugins_url vs plugin_dir_url

Im seeing WordPress plugins either use plugins_url or plugin_dir_url when creating constants to some of their folders. Is one better than the other? examples: define( 'MEMBERS_URI', trailingslashit( ...
3
votes
5answers
2k 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. ...
3
votes
1answer
3k views

How do I make my function add variables/values to the $post object?

How do I add $tzDesc and $tzEmbed (and other variables) to the $post object in the following function so that I can display the values in my theme files by inserting <?php echo $tzDesc; ?>? ...
3
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1answer
4k views

Warning/Notice about functions.php

I have trouble about the notice shows on the top of the home page as: Notice: load_plugin_textdomain was called with an argument that is deprecated since version 2.7 with no alternative available. ...
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5answers
3k views

wp-admin page is blank

Something is wrong with my wp-admin page, it just shows up blank. I am pretty sure it has to do with my function.php file there is no whitespace on the top or bottom, but when I delete it completely, ...
3
votes
2answers
5k views

Get user id from email?

I'm working on an email system, and I'm onto the unsubscribing stage. Since most of my users would not know their user ID, I'm asking them to put their email into a text box (definitely preferred, ...
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3answers
2k 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
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3answers
863 views

Add Useragent to the body class?

I'm looking for a way to add body class depending on the User Agent of the client with php. I'm looking to implement it this way: page.php: <body id="front" <?php ( function_exists ( ...
3
votes
3answers
3k 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
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1answer
178 views

How to display random users with avatars

I adapted a little a function to display a number of random users with their avatars with a shortcode. It works, but something is not good. Sometimes it displays with one user less than I want (just a ...
3
votes
1answer
4k views

Add container to nav_menu sub menu

Is there a way I can wrap a div around wp_nav_menu's ul.sub-menu So for example the markup would go from <ul class="menu"> <li><a href="/">Item 1</a></li> ...
3
votes
1answer
3k views

What is the correct MIME type for PSD (Photoshop)

I am trying to create an upload area (frontend) for word press users on a site. I've got a lot of types opened up through some function calls, but unable to correctly get PSD support. I'm seeing a lot ...
3
votes
2answers
2k views

delete post also attachments

I am trying to delete a post with its all attachments. This is the function that i came up with right now; function remove_post(){ if(isset($_POST['post_id']) && ...
3
votes
1answer
2k views

How to paginate the get_users function?

Im using the get_users function to show a custom list of users on the site. The only issue Im having a problem figuring out now is how to paginate the result. This is a sample of the function that Im ...
3
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2answers
861 views

Modify CSS via Theme Control Panel

Hi to all I'm trying to create an advanced control panel for my first Wordpress template but I'm not able to add a function that I will need. The function that I'm trying to add is the possibility to ...
3
votes
2answers
4k views

Wordpress 3.1 - How does one add sticky post capabilities to post types

In wordpress 3.1 they finally added the option of allowing posts belonging to a custom post type to be marked as "sticky"... what I can't figure out though is how to enable this so the admin menu ...
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1answer
2k views

Is it possible to use a forgot password url filter?

i recently found that a login url filter is available but i can't find a solution for the forgot password as well, for the login url i use this: function custom_login_url($login_url) { return ...
3
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1answer
469 views

Roles & capabilities GUI that does not create separate table

After reviewing plugins that deal with user roles and capabilities I concluded that I might be better off just hardcoding my settings into my functions.php file. This actually worked out well for me ...
3
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2answers
2k views

How to customize the_archive_title()?

In my child theme's archive.php, I have the following code for displaying the title of my archive pages: <?php the_archive_title( '<h1 class="page-title">', '</h1>' ); ...
3
votes
2answers
102 views

When is it appropriate to put functions on page template vs. functions.php?

I'd like to improve my code and on a current theme, I've extended Wordpress with custom post types, metadata, customized user authentication, and a number of other items. Some of these functions ...
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
1answer
801 views

When to use esc_url, esc_html, esc_attr, and friends?

Discovered esc_url today while customizing an _s theme. I understand what the function does (sanitizes the URL inside), but what I'm unsure of is the scope of its use. It makes sense to me that if ...
3
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2answers
367 views

How to get comments with mixed status using get_comments?

Is there a way to get comments with more than one status using get_comments function? Let's say I would like to get both trash and hold comments. It is possible to do the same with posts: ...
3
votes
1answer
291 views

WP doesn't show Array Custom Fields?

I'm wondering why WordPress doesn't list PHP array() and any serialized data in Custom Fields in Admin Panel (for Pages, Posts etc.)? Only Custom Fields containing strings and numbers show up and can ...
3
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2answers
2k views

How to display the_post_thumbnail if a post has one or otherwise display the first image in a post?

I would like to create a condition that checks to see if a post has a thumbail and if it does display it, otherwise display the first image in a post. I tried something like this in my loop.php but ...
3
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1answer
868 views

Check if post is being published for the first time, or is an already published post being updated

I am building an add-on to an events module that checks for availability, since there wasn't a function for that in that module. Now that I have built the logic, there are three emails I will need to ...
3
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1answer
3k views

Use 'add_theme_support' instead of 'add_custom_image_header' In WordPress 3.4

I am debugging my theme using Debug Bar plugin, which is showing me this error (among a few others): Notice: add_custom_image_header is deprecated since version 3.4! Use add_theme_support( ...
3
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1answer
2k views

add_action in a function, is it possible?

I am trying to add some js to the head using add_action('wp_head', 'js_func'); which works when posted just after the function, however I do not want it posted on every page, just the page that it's ...
3
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2answers
1k views

How can I programmatically create “child” pages on theme activation?

I know how to create pages automatically when a theme is activated, but I need help to figure out how to also programmatically create child pages at the same time. For example: - Page 1 - Page 1.1 ...
3
votes
2answers
2k views

How do I remove a require_once admin panel from the parent theme from the child theme functions.php?

In the parent theme, the following is at the bottom of the functions.php file. require_once(TEMPLATEPATH . '/admin/admin-menu.php'); In the child theme's function.php, this code will include the ...
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1answer
4k views

How to override function in functions.php of parent theme?

I have created child of theme twentyten. I tried to override function written below /** * Returns a "Continue Reading" link for excerpts * * @since Twenty Ten 1.0 * @return string "Continue ...
3
votes
2answers
254 views

Why might $input (Settings API) be coming through empty?

I'm trying to be a good thememaker and pass all my settings through the Settings API, but I'm running into some difficulty in the sanitization callback function. The core of the problem is this: the ...
3
votes
1answer
6k 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 ...
3
votes
2answers
654 views

Seeking clarification on page request life-cycle

I'm just trying to get my head around the "life-cycle" of a typical page request in WordPress. The Action Reference page lists 38 actions that occur during a typical page load, but two things aren't ...
3
votes
2answers
569 views

How can I add dropdown widget/box to admin post page?

I am trying to figure out how to add a dropdown widget to the post page. The reason I ask is because I would like to be able to have a few different post classes that the user can select while making ...
3
votes
1answer
3k views

Generate Advanced Custom Fields box in custom admin menu page

I have created an custom admin menu page called FCC Youtube with add_menu_page function which has some custom fields I manually generated via HTML and PHP: code ( just the part how I created this ...
3
votes
1answer
2k views

Masking logout URL

The primary goal is to hide that the site is driven by wordpress. I've got the login part all locked up, but the logout URL still has those blasted wp delineators that give away it's a wordpress site. ...
3
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1answer
95 views

How to prevent deleting of comments when deleting a post

Like the title says: How can i prevent Wordpress from deleting post comments when i delete a post? What i am trying to accomplish is that i want to merge all comments from different posts to posts ...
3
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1answer
70 views

which is the function that removes accented vowels?

Which is the function WP uses to convert words like "voilà" and "novità" to "voila" and "novita" in category slug? Can I recall it in my theme?
3
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2answers
2k views

Need to create a Theme demo site that features multiple themes

I would like to create a site like: http://demo2.woothemes.com/?name=sentient for my clients, so that they can see the range of themes I offer. I own many templates from different providers, and ...
3
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5answers
3k views

Show Video in Excerpt

So I recently figured out how to change my blog page to display excerpts by changing the <?php the_content(); ?> to <?php the_excerpt(); ?> in my index.php file. I am using a custom child ...
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 ...