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
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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 ...
3
votes
1answer
5k 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. ...
3
votes
1answer
5k views

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 "...
3
votes
1answer
69 views

Add options to featured image

I want to add an option to the featured image metabox. I have found a way to do this here The problem I'm having is saving the value tot the database. Here is what I have tried: add_filter( '...
3
votes
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 ...
2
votes
1answer
2k views

Can shortcodes contain conditional statements? Even without them my shortcode renders blank page

The following code is supposed to allow for a shortcode that includes many attributes, but not all of the attributes may always be present in which case I do not want the containing element to show ...
2
votes
2answers
2k views

function to include is_home, is_archive, is_category, is_author etc in one function?

I'd like a way to target only blog-area pages for specific formatting. So far, <?php if (is_home() || is_single() || is_category() || is_archive() ) { ?> works okay, but is there a way to ...
2
votes
3answers
2k views

Using get_terms for custom taxonomy in functions.php

I`m trying to retrieve the names of taxonomy items and include them into a theme admin panel. function retrieve_my_terms() { global $terms; $terms = get_terms('taxonomy'); foreach ($...
2
votes
1answer
2k views

Problem using is_single() to enqueue script from functions.php

I'm having trouble only adding scripts to single post pages. I need to both include and exclude certain scripts using is_single() but it doesn't work either way I try it. I have the template tag on ...
2
votes
2answers
470 views

Calculate percentage of post by category

Is it possible to calculate the percentage of posts in each given category? I'd like to make a bar chart to visualize the amout of posts in those categories. I thought what one needs would be the ...
2
votes
1answer
108 views

Gallery images titles - get from post

Is there any possibility to make a functions hook, which will automatically override titles of added images (or added during gallery creation) with post title? Just like in the example: - im creating ...
2
votes
1answer
667 views

When to check if a function exists

I've just started developing a WP plugin, and i've been reading some code from other plugins as a way to get started. I've seen a couple of plugins that wrap all or some of their functions in the ...
2
votes
1answer
1k views

How to override a theme function (within a class) using a plugin

I am working a website which utilises a highly complex theme (essentially a whole bunch of other software tacked onto Wordpress), so complex in fact, that child themes wont work with it. I want to ...
2
votes
1answer
837 views

If function exists, and array is met, echo function?

I have a function like the following: <?php echo my_custom_function( array( 'category_url'=>'My Special Category' ) ); ?> It pulls data from the "My Special Category" and displays it. I ...
2
votes
1answer
209 views

Common functionality between my own plugins

I read that when creating new post types, creating a settings page, and creating a new taxonomy, you should create a plugin. So I have done that. But I have functionality, which could be generalized, ...
1
vote
1answer
544 views

Saving Plugin settings to the database

I'm not a complete novice with php or wordpress but am wanting to approach this problem the most efficient way so believe asking here will help. I've got a plugin that randomly generates a quote - I'...
1
vote
1answer
372 views

echo or print_r in an admin function

I'm currently working my first plugin (to deal with my CPT) and am at the process of saving the values of a meta box. I wish to add an underscore (_) to the meta key so that it is hidden on the ...
1
vote
1answer
649 views

How often is functions.php loaded?

Trying to get my head round functions.php and am wondering how often it is loaded?
1
vote
1answer
235 views

Display the number of user comments

I would like to display, on the author/user/contributor page, the number of comments the user has posted, and the number of comments he has received on his posts. Is it possible? Thank you !
1
vote
1answer
8k 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 ...
1
vote
1answer
383 views

Remove class that has been added by parent theme

My parent theme generates the following class in body: style-cupcake. I don't want that. The best way to get rid of this is by adding my own functions in a functions.php file in my child theme, right? ...
1
vote
2answers
386 views

write in functions.php

i just want this code to be added in my functions.php, so that it will directly display after my post ends currently i am adding this code to my single.php, but i want to add this is in functions.php, ...
1
vote
2answers
596 views

Short_title character problem

I am using this code to shorting the title: function short_title( $after = '', $length ) { $mytitle = get_the_title(); if( strlen( $mytitle ) > $length ) { $mytitle = substr( $...
1
vote
2answers
1k 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 ...
1
vote
1answer
1k views

Add a Post Thumbnail to an RSS Feed with custom size

I have two different blogs on the same domain and my goal is to get the 3 latest posts from blog1 to show on the home page of blog2. Everything goes well following these instructions: http://www....
1
vote
4answers
2k views

change a post status when users update posts?

Is there an efficient way to change a post status from 'published' to 'draft' when a user of a certain type tries to update their posts. I tried something along these lines function ...
1
vote
2answers
311 views

How to add a rel attribute to images that contains their categories?

I've added categories to images, so that I can use them to filter images within a portfolio page. Now I'm thinking I need to add the rel attribute to each image that contains its assigned categories. ...
1
vote
2answers
751 views

How to Append to the_excerpt() Function

I have the following snippet of code: <?php>$more = '.....';?> <p class="extra"><?php the_excerpt(); ?></p> What I am trying to do is append the value of $more to ...
1
vote
2answers
326 views

How to change featured content to a different tag in Wordpress Twenty Fourteen?

In twenty fourteen theme, we’d like to know how to change the features content tag. Currently it’s set as featured. Now, we would like to know how to code this for different page templates. We ...
1
vote
1answer
1k views

Declaring an instance of class included in parent theme from child theme functions.php

Please note this is all "working" - the question is about the best practice and to try and work out why I need to include the PHP file which contains the class in two places for it to work correctly. ...
1
vote
1answer
7k views

How to display error messages using WP_Error class?

I have registration form code in my functions.php file like this if ('POST' == $_SERVER['REQUEST_METHOD'] && !empty($_POST['action']) && $_POST['action'] == 'registration') { $...
1
vote
2answers
3k views

can you set a default value to a custom field

I'm looking to set a default value to a specific custom field, in case the client doesn't add into the custom field it already has a specific number associated with it. one step deeper, I'd like it ...
1
vote
2answers
1k views

Execute a shortcode when clicking on a image

I asked this in stackovorflow under javascript and was informed not possible so I trying here I have a shortcode for a opt-in form and I want it to pop up when a image is clicked I tried the ...
1
vote
3answers
6k views

Custom page template how to check is_page from functions.php?

Have a custom page template and trying to make the excerpt length dynamical depending on what page you are in. Functions.php <?php function custom_excerpt_length($length){ if (is_page(15)) { ...
1
vote
1answer
473 views

Help with WP gallery function, wrap gallery in div

I have a function in my functions.php file I need to change slightly and am having trouble doing it correctly. This function changes the gallery markup for Wordpress, making it more html5 friendly. It ...
1
vote
1answer
190 views

Adding Google Analytics to footer selectively

// add google analytics to footer function add_google_analytics() { ?> if ( !is_user_logged_in() ) { <!--Google Analytics--> <script type="text/javascript"> var _gaq =...
1
vote
2answers
3k 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' ); ...
1
vote
1answer
101 views

Get the title before comma

I am using this code to return the title of the post on a gravity form field. add_filter('gform_field_value_page_name', 'page_name_filler'); function page_name_filler($value){ return ...
1
vote
1answer
203 views

Function returns different value when called from 'save_post' than when called on page load

The "word_count" function below returns different values depending on where its called from. Why? add_action('save_post', 'my_custom_save', 10, 2); function myPlugin($post) { global $rockScore; ...
1
vote
1answer
4k views

Targeting specific menu with wp_nav_menu_items

Hey! I have added a wp_loginout() to my header using a snippet in my functions.php: add_filter('wp_nav_menu_items', 'add_login_logout_link', 10, 2); function add_login_logout_link($items, $args) {...
1
vote
1answer
950 views

Conditional tag is_page with a custom post type

Accordingly to the is_page documentation, supplying the slug as an argument WP can tell me whether the current page is the one represented by the slug. Perhaps I am using the wrong slug? However I ...
1
vote
1answer
783 views

Merging PHP download script into `functions.php`

I run a large mixtape download site on WordPress. I'm currently developing a new theme and I'd like to include as much site functionality into the theme's functions.php. For serving the downloads, I ...
1
vote
2answers
134 views

Dynamically Register Sidebars For Each Top Level Page

I have a small website that wants a different sidebar for each page containing blocks of text, blocks of images, and blocks of links, etc. What I'm trying to do is register a sidebar for each top ...
1
vote
2answers
1k views

gform_after_submission content appears immediately after <body>, not in post body [closed]

I have the following function that successfully uses form fields (IDs 13 and 18) from a Gravity Form (ID 18) as parameters within wp_query. This displays a list of posts with specific taxonomy terms ...
1
vote
1answer
267 views

exclude category from WordPress Form function

I have this function and I need to somehow exclude a category number 14 from my submission form. Is there any way to do it inside this function? function retrieve_cat_data($byid = false){ $...
1
vote
5answers
364 views

Problems with removing admin bar

I am trying to remove the admin bar from a theme front end of a theme. I found the following code block: add_filter( 'show_admin_bar', '__return_false' ); remove_action( 'personal_options', '...
1
vote
1answer
382 views

I am Looking to append URL Parameter to all URLs

I am trying to add URL parameter to all the URLs of Wordpress website. This is for tracking affiliate sales by tracking links. E.g. I have put a link on another website http://website.com/?aff=...
0
votes
1answer
1k 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 ...
0
votes
2answers
2k views

Custom Sidebar only on single post

I am developing a child theme for the new twenty thirteen theme and I am trying to add a sidebar (widget area) next to my content. I only want it to display in single posts. What I did: edit single....
0
votes
2answers
96 views

Conditional Page Template not working

I am using this code in functions.php to conditionally load some shortcodes but it doesn't work. The shortcodes are still loaded on template-flat.php. Any ideas what's wrong here? if( ...