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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3answers
621 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 125,...
1
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1answer
151 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
2answers
319 views

How to use WordPress (PHP) functions in AngularJS partials files?

I am using AngularJS to load a list of my WordPress posts, however I can not get any of my PHP functions to work with my partials file. I've tried using something such as search.php instead of ...
0
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1answer
2k views

How to get the post id from a permalink?

How can I get the post id from a permalink like "http://localhost/wordpress/animals/cat" in functions.php, I have tried url_to_postid() and get_page_by_path() but none seem to work.
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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 ...
8
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2answers
10k views

wp_enqueue_script was called incorrectly

Hello I don't know how but now I am getting this error Notice: wp_enqueue_style was called incorrectly. Scripts and styles should not be registered or enqueued until the wp_enqueue_scripts, ...
7
votes
2answers
168 views

Memorizing syntax

I hope the following question is acceptable here. I rely entirely on copy/paste for most WP functions, however I guess WP veterans don't. Is it important to know by heart the common WP syntax, and if ...
6
votes
1answer
3k 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
4answers
685 views

Should I write a PHP function in home.php?

I am trying to learn WP Theme development. And as I have understod all "wp core" functions should be placed inside functions.php. But what about custom functions? Lets say I would need a simple ...
5
votes
2answers
176 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
3answers
514 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, ...
4
votes
1answer
4k 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 = ...
4
votes
3answers
230 views

How to restrict actions and filters “properly” by conditions

Which one is correct when adding actions/filters/etc.... Both methods work fine and I've seen people do things both ways, but I'm assuming one is correct. My gut tells me that wrapping the if ...
4
votes
2answers
796 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
4k views

wp_register_script not loading as expected

I am loading scripts like this: //load scripts //wp_register_script( $handle, $src, $deps, $ver, $in_footer ); add_action('wp_enqueue_scripts', 'load_scripts'); function load_scripts() { if (!...
3
votes
1answer
2k 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
2k 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
10k 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. ...
2
votes
2answers
522 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 ...
2
votes
2answers
2k views

Code to auto expire posts after 30 days

I've tried the plugins that are available in the Wordpress plugins section but they seem to fail miserably. Initially, I used Auto Post Expire By User Role which worked for a time, but for some reason ...
2
votes
2answers
8k views

How do I get the current edit page ID in the admin?

Most solutions I found are for front-end use. This is for a plugin, so the all activity is in the back-end. How do I get the page ID that's being currently use(edited) in the admin? Note I'm out of ...
2
votes
1answer
288 views

expire wordpress user posts

I'm trying to make classified WordPress theme and I need to make users posts expire date plus show that date into the post. Users only allowed to publish their posts in post-types not as ordinary ...
2
votes
1answer
2k views

Why is my custom meta box input not saving

I've added the following function to functions.php to add a custom meta box enabling the end user to input a gallery shortcode. I then intend to use this to place a gallery in a specific place on the ...
2
votes
1answer
721 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 ...
1
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1answer
270 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' . $item->...
1
vote
2answers
467 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 ...
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vote
1answer
337 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 wordpress-...
1
vote
2answers
368 views

Displaying a random user with a shortcode

I'm trying to setup a shortcode to show a single random user each time the page is refreshed. I've been successful in displaying all users or a select user by the user ID. Here is my shortcode as it ...
1
vote
2answers
420 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
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2answers
2k views

Change labels on 'Nickname' and 'Biographical Info' in user-edit.php

For a project I'm working on, I want to change the labels of the 'Nickname' and 'Biographical Info' fields on edit profile (user-edit.php) page in the dashboard. I still want to use those fields as ...
1
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2answers
926 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
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1answer
137 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
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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
86 views

Execute a function using ajax

I have a function called function getSingleAmazonProduct($asin=''). It returns an amazon product. I have a form field to enter the $asin. <div id="asinform"> <form id="...
1
vote
2answers
2k 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
1answer
121 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']); unset($...
1
vote
1answer
1k views

Can I remove the Rich Text box editor for a specific post?

A few months ago I asked a similar question: Is it possible to remove the main rich Text box editor? and got the following answer: function remove_pages_editor(){ remove_post_type_support( 'page',...
0
votes
2answers
358 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
76 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
0answers
605 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
6k 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
1k 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
1answer
65 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
1answer
200 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
313 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> ...
0
votes
1answer
103 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 (...
-3
votes
2answers
2k views

Removing the default sidebar from admin panel

I would like to remove the default sidebar from my template, it is not needed and I do not want to confuse the user that will be using the admin panel. I have created my own sidebars that are a bit ...
5
votes
3answers
2k views

Plugin update error message

I'm working on a client website where the framework requires a specific plugin version to work properly. With the follow lines of code in my functions.php file, it stops the plugin from updating ...
4
votes
3answers
4k 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 ...