Questions tagged [functions]

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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static variable loop not working in Wordpress

I have a function in my wordpress theme that deletes the first embedded video in a video post. See code below. This is in the functions.php file. /* - function that hides first video in post content -...
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4 votes
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5k views

AJAX handler throws 400 (Bad request) - why?

I am trying to apply a "Load more posts" function to a post loop, but I am dealing with a 400 Bad request, when admin-ajax.php is referred to. The reference I used is this - https://rudrastyh.com/...
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219 views

Customize WordPress Media Manager - Media Window

Im trying to customize the wordpress media manager "add media" window to get it as simple as possible to use. So i want to disable/ hide the following fields/ functions because i dont need some or ...
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Changing a function in function.php to a shortcode - for listing categories of only a certain post type

I'm trying to create a shortcode that can display a list of categories. However, it should: First, limit the results to a specific post type (based on shortcode usage) then check to see if category ...
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3 votes
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How to find out what blocks are added by a plugin

I am creating a plugin, which adds a number of blocks defined by JS/PHP as per Gutenberg documentation. I want to display these block names on an admin page. Is there a hook or function I can use ...
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Get widget settings function?

I am using this to find if a new widget has been added or removed from my site: serialize(retrieve_widgets()); Works great for added or removed widgets. But it doesn't detect if a widget setting has ...
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1k views

Updating users_can_register option?

I have a custom setting page, where i have a radio to Enable or Disable Registration then try to update the wpoption (users_can_register). Screenshot: I've tried both true/false & 1/0 but it ...
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3 votes
4 answers
193 views

What is the Difference between directly call a function and call a function using add_action?

What is the difference between following two codes? (Directly call a function and call a function using add_action) function pp_submit__link_form(){ if(isset( $_POST['action']) && $...
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3 votes
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my function doesn't return my post from today

I'm using gravity form to create some custom post type - as events. Everything is working great, There is some date field to setup the event from x to y date. ALl of this working great. However, I ...
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Date/time limitation of posts where function must be executed

I have this piece of function in my functions.php file: function user_content_replace($content) { $sentences_per_paragraph = 3; // settings $pattern = '~(?<=[.?!…])\s+~'; // some punctuation and ...
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3 votes
1 answer
170 views

Function to Download External Images to My Site

I display images on my site from other sites. The URL is saved in a custom field named couv. I would like to download these pictures on to my site and create a new custom field with the new value ...
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3 votes
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4k views

Force update all posts in custom post type, no content changes

I have imported data from a custom post type that has location data for a map plugin (Progress Map). I have about 500+ posts each with different location data. For some reason the location data isn't ...
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1 answer
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Custom wp_trim_words() function not trimming right

I have this custom wp_trim_words() function set to give me excerpts of only 20 words, and for the most part, it works fine. Except for some reason, on posts that contain lists, it outputs way more ...
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  • 353
3 votes
2 answers
306 views

How to remove the embed_footer?

I'm trying to remove the entire embed_footer from WordPress embedded posts. By adding the following code in the functions.php, I was able to remove the site title and comments icon. But still, the ...
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  • 276
2 votes
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34 views

Disable shortlinks like ?p=1234 to prevent scraping

I have a site with several thousand public pages that use randomly generated slugs for their pretty urls. The content is public in the sense that if someone knows the URL, they can see the content. I'...
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2 votes
1 answer
373 views

Custom roles can't access to wp-admin

i'm trying to create a custom role, very similar to admin but without the capabilities to edit/delete plugins. Since i don't wont to use plugin for that i've edited the functions.php file adding ...
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Redirect a list of URLs to another URL, using functions.php

What I wish to do I have a number of Wordpress URLs I need to redirect, along with a 301 permanent redirect header being sent to browser. The URLs to redirect are: https://www.mydomain.com.au/...
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Wordpress if (is_page) translation on certain page

Hy there i have the following code for custom translations there are missing. function translate_text( $translated ) { $translated = str_ireplace( 'All Ratings', 'Alle Bewertug', $translated ); $...
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2 votes
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How to add SVG icon above product tab title

I used the following code to create custom product tabs (woocommerce), and now I was wondering if I can add an SVG icon above the tab title. My code for a custom product tab: add_filter( '...
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2 votes
3 answers
1k views

How to specify which Gutenberg blocks are available in the editor for a page template

Using an example given here: enter link description here I've successfully been able to restrict the block types available globally or by post type (eg: page). But what I really would like to do is ...
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2 votes
2 answers
796 views

Change links automatically to affiliate links

My goal: I want external links to shops I'm affiliated with (for example amazon) to automatically get the affiliate ID attached to it. Example: link I put in my blog post editor https://www.amazon....
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2 votes
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149 views

Wordpress Content Security Policy and Subresource Integrity

I have tested my website at https://observatory.mozilla.org/ and I receive the following two errors: Content Security Policy -25 Content Security Policy (CSP) header not implemented Subresource ...
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  • 145
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47 views

How to Replace Words with Hypertext Link But Ignore Previously Existed Links?

Auto-linking for "selected words" in the_content I am currently using the following code: function wp_affiliate_links($text){ $replace = array( '/ example /' => ' <a rel="nofollow" href="...
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2 votes
0 answers
729 views

Contact Form 7 - Delay auto responds

I'm looking for a way to delay the auto response (mail_2) from Contact Form 7 for 2 days. But I have no clue how to tackle it. I hope you have an idea. I'm using the following code in functions.php ...
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  • 33
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192 views

Make Categories a Dropdown Menu in Media Library

I would like the categories menu to appear as a drop-down in both the list mode and grid mode view of the Wordpress media library. As of now, it only appears as a drop-down in list mode. List Mode - ...
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2 votes
0 answers
1k views

Override woocommerce wc-class function

I'm not good in WP and plugins and will need some help here. I've read that is possible to alter some WC core function with filters and action but probably I didn't understand this correctly. I want ...
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  • 135
2 votes
1 answer
921 views

Hide some items from Screen options in dashboard for products

I am trying to unset/hide some options in dashboard. I am trying it for products screen. Here is the screenshot Here is the code i tried to hide SKU /** Hide Dashboard widget by default via Screen ...
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2 votes
0 answers
377 views

How to change the page break <!--nextpage--> URL from ../post/2 to .../post/page2/

I am referencing the WP codex here: https://codex.wordpress.org/Styling_Page-Links but cannot find a way to customize the post URL for page break ( ) feature. For exmaple: instead of the traditional ....
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2 votes
1 answer
185 views

password protected post policy

I'm looking for a way to add policy about POST password. Password specifications : 12 characters in length, 1 uppercase letter, 1 lowercase letter, 1 number, and 1 special character. Is ...
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  • 264
2 votes
0 answers
650 views

Search user metadata with checkboxes via ajax (almost working)

I have created an ajax search form following some tutorials online, it is working but not exactly how I need it to. Here is where I got the search from. I have US states setup as a user meta field ...
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  • 21
2 votes
0 answers
727 views

How to use max and min values of custom fields

How to use max and min values of custom fields (created via ACF, repeater type)? For axample, I've custom post type 'auto' and there are a lot of models. Each post(model) has few values of price (...
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2 votes
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70 views

Trying to inject twitter metadata into <head> using wp_head action in functions.php - get_the_excerpt() returns null

So I followed the "Add Twitter Cards without plugins" this tutorial for how to add twitter metatags into the header using the wp_head method. I have pretty much taken the code as is, and put it in ...
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  • 121
2 votes
1 answer
467 views

How to make thumbnail image fit into a div where image dimentions are completely different?

I defined a div which is 200px * 200px for my thumbnails using the code below in my index.php file: <ul> <?php $my_query = new WP_Query('showposts=10&cat=3'); while ($my_query-&...
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  • 21
2 votes
1 answer
53 views

Hiding posts in a list from specified categories

Question How can I modify this code to not show posts from new categories that we just added. I searched other similar answers on this site [such as: Exclude category on blog list page ] but not ...
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  • 194
2 votes
0 answers
1k views

Logging in redirects to correct page but shows logged out content until forced refresh

I'm trying to change some of the content being shown to viewers based on whether they are logged in or not. I'm using the is_user_logged_in() function in my child theme's functions.php to replace the ...
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2 votes
0 answers
835 views

woocommerce target button with class after ajax update

I'm working on a eshop using woocommerce. I have an add to cart button with class "single_add_to_cart_button", and a variations select list with 3 sizes. When I select a size which is unavailable, ...
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2 votes
0 answers
771 views

Function to "Press Update Button" on all posts

tl;dr - I need the equivalent of pressing the "Update" button on many/all posts, without having to manually open each post and press "Update". I'm bulk importing from a CSV into WooCommerce, which is ...
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2 votes
0 answers
2k views

Move jQuery and Migrate to footer?

I've seen this answer, but I'd like to move Migrate as well. I'm trying to move both jQuery and Migrate to the footer and change the jQuery to the CDN version. Here is the failed code I've tried (Why ...
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  • 143
2 votes
1 answer
221 views

How to use IF Statement in WordPress?

I can't see how to correctly use the PHP if statement in my filter function below. This code works perfectly if all (3) of my $_POST inputs have values however it has a fatal error if any are empty. ...
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  • 21
2 votes
0 answers
1k views

bulk change of image setting "link to" to "link to: image url "

i want every image present on my wordpress site with setting "link to: none" or "link to: post url" became in "link to :image url" ho make this for old post and for new post ? i tried this code in ...
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  • 21
2 votes
0 answers
1k views

Change logo based on incoming domain

The agency I work for are trying to get a client's logo to change based upon the incoming URL. Now, we have 4 different URLs, therefore 4 different logos. Currently, we are using an if/else ...
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2 votes
0 answers
181 views

Woocommerce Storefront WordPress Ignore Media Gallery Images and use External 3rd Party Host

OK, firstly we have done this before using Magento and it worked well, but with WordPress? Well, here is the problem and the plan... The Problem For a few reasons we wish to use a 3rd Party host for ...
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2 votes
0 answers
1k views

Overwrite Parent Theme add_image_size in Child Theme

I'm using a child theme of a parent theme. Now on my parent theme, theveloper adds some custom image sizes like this - if ( function_exists( 'add_image_size' ) ) { add_image_size( '...
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  • 884
2 votes
2 answers
3k views

add a function to submit options.php

I have a form which does <form method="post" action="options.php"> ......... <input type="submit" class="button-primary" value="<?php _e( 'Save changes', 'bsp_style_settings' ); ?>" /&...
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  • 21
2 votes
2 answers
104 views

How to show in search results posts with a particular tag in a particular category?

As the home page of my blog I've a static page. There I want to show the navigation of the site. Category1 Sub-Category1 tag1, tag2, tag3 Category1 Sub-Category2 tag1, tag2, tag3 Category2 Sub-...
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  • 121
2 votes
0 answers
1k views

jQuery Plugin to use Wordpress functions in AJAX request

I'm using Chained Selects jQuery Plugin to create multiple chained selection fields. I'm using the remote version of the plugin to build the related options by means of AJAX request from a separate ...
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  • 1,395
2 votes
1 answer
155 views

How can I list random authors from current post category?

The following lists authors of the current category. But I want this to be a list of 6 random authors from current post category. foreach((get_the_category()) as $category) { $postcat= $category-&...
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  • 195
2 votes
4 answers
3k views

Using plugin functionality in external php script not working

I am encountering a strange problem which I couldn't solve so far. I'm calling a .php script via cronjob (Debian/GNU Linux). To use wordpress functionailty I added: define('WP_USE_THEMES', false); ...
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  • 543
2 votes
2 answers
322 views

Find first image on paginated post for Pinterest

I've been looking for days, yet can't find a good answer. Perhaps the SE crowd can be of assistance. Any help is much appreciated. I am using a custom-coded pinterest button included on posts that ...
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1 vote
0 answers
18 views

Display alert on successful user Sign Up

I think wordpress used to automatically redirect to a page with a message telling a newly registered user to check their email box to activate their account. For some reason, when a new person ...
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