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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Modify search function in WordPress (TwentyTwelve)

I want to remove "Search for" text from search form in TwentyTwelve, to wrap in in a div for styling, and probably to play with php a bit – and I'd appreciate some advice on how to do that best. My ...
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127 views

Adding a user's ID behind the <a> tag ref link address

Good day, everyone: I want to make wordpress to add the user's id number behind the ref's link string, so that, for example <div class="toolsbutton"> <a ...
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2answers
205 views

Remove Menu Page Giving Error

I have a snippet of code I've written in the functions.php file which is simply to remove menu pages if the user cannot activate plugins. It works as intended; however it is showing a PHP error in ...
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2answers
128 views

Using locate-template & shortcodes doesn't appear to work

For organisation, I'm trying to split up the functions.php file into separate files. In particular the functions for shortcodes in a separate file, with the shortcodes being defined in functions.php. ...
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1answer
75 views

How to shorten code with function?

Now on the front page, in the part with post excerptions I have such a code: <div class="wiadPodtyt"> <ul> <?php $piwa = get_posts( array( 'posts_per_page' => 2, 'cat' ...
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492 views

Generate featured images old posts

I am looking for a way to generate featured image per post based on the first image in the post for old posts without a set featured image. I'm switching from handmade thumbnails to auto generated ...
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1answer
232 views

Using email_exists() wp function in an ajax request

I'm requesting the wordpress function if (email_exists($email)) { ... } from a file (email_check.php) via ajax. Using this function is causing a server error though. The origin (from an input text ...
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1answer
384 views

Displaying Saved Meta Box Data in Drop Down with selected()

I have a custom meta-box for certain custom post types, and one of those fields in the meta-box is a drop down. I am providing the field correctly, saving the information, and even calling it ...
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1answer
2k views

How to call a function only once (global variable scope)

I have been trying to work out the most effecient way to use functions in WordPress. I have a big slow function big_slow_function() that ideally is only run once. But I need to use the boolean that ...
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1answer
180 views

Stripping and/or altering the content of a custom field (video URL)

I’m making a theme where some posts have an associated video, from either Vimeo or YouTube. At the moment, users can add this to a post by adding a video ID into one of two custom fields, called ...
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1answer
406 views

Remove default post types on all sites except primary blog. WPMU

I'm trying to come up with a solution that would allow me to remove the default post types (pages, posts, comments, links, etc) from all the multi-site blogs EXECEPT the primary blog. It will remain ...
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2answers
903 views

Make Current/Active Page Number a Link (WP_LINK_PAGES)

With the default wp_link_pages the current/active page number is not a link. I would like to find a code/hack which turns the current/active page into a link to the top of the page. I am already ...
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2answers
2k views

Default or Preset Content for Custom Post Types

I am trying to modify the code for default content to display based on post type, but so far I have been unsuccesful. The base code is: add_filter( 'default_content', 'my_editor_content' ); ...
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1answer
638 views

Error after editing functions.php

I was making minor changes to functions.php file but just as I made the changes I got an error, I used FileZilla and undo the function I added but now I am getting the following error, Fatal ...
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4answers
3k 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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2answers
717 views

Best way of adding CSS which can be manipulated by the user via theme option panels?

I thought about adding it as inline CSS with code from the functions.php (not really sure how to do it). Something like this: function addcss() { background: $this_is_the_css_value; } I would ...
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3answers
601 views

Listing all sub-pages?

I'm wondering how to write a list of sub-pages of actually visited page. So I have 2 pages and 3 sub-pages for each: Colors [page] - Red [child of Colors - subpage] - Blue [child of Colors - ...
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1answer
521 views

Echo youtube code from url or shortcode

I want function that scan wordpress posts for youtube links or youtube shortcode and when found it, with regex selects only code from url (like '2SaZO4Gmfdc') and echo that code. For now, i edited ...
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2answers
2k views

How to add CSS style sheet dynamically in wordpress

When certain conditions are met (e.g. post vs. page or a category is tagged, etc) I would like to load an additional CSS file. This file would, in theory, change link colors. Or perhaps change the ...
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1answer
2k views

How to display multiple custom columns in the wp-admin users.php?

I'm using the manage_users_columns to display a custom field I create in the usermeta database called company. My code is as follows: function mysite_column_company( $defaults ) { ...
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1answer
577 views

List only child categories a post is in, of a specific parent category

Either this is harder than it needs to be or I am just not understanding WordPress/PHP very well :( All I want to do is show the child/sub categories of a specific parent category...but only if the ...