Questions tagged [php]

For questions about the server-side programming language that the WordPress core, plugins and themes are written in. Questions about using PHP outside a WordPress context are off-topic but might be asked on Stack Overflow.

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votes
2answers
2k views

Correct use of curly braces vs alternative synax

In most themes I've looked at and WordPress core, I'm seeing the use of endwhile and endif. Is there a good reason why WordPress uses these instead of curly braces for block statements?
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1answer
2k views

How to Remove Parents Category Permalink from Posts

Simply speaking i want to do something like this. http://example.com/parent-category/child-category/post-name change into http://example.com/child-category/post-name I found some solutions, but ...
2
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1answer
2k views

Multi step form, custom plugin

I have built a working multi-page contact form that has Zoho CRM & Slack integration. What I want to do is when a user goes to our contact page, they will see the first half of the form (step1....
2
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1answer
63 views

Cleanest/Fastest way to avoid calling and retrieving data from the database multiple times?

So this may be a very noob question, but I believe if I can get the answer to this I can clean up code and speed things up significantly. I build projects using Woocommerce quite a lot, and in doing ...
2
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1answer
11k views

Insert plugin content before body end

How do I make plugin's content appear in a place I want? For example let's say I have a plugin that output's a paragraph: echo "<p>foo<p>" If I do this it will appear on a page outside ...
2
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2answers
2k views

Get list of shortcodes from content

I need a list of every shortcode inside the content. Is there any way to list them? This is what I need: $str = '[term value="Value" id="600"][term value="Term" id="609"]'; So every shortcode ...
2
votes
1answer
844 views

WordPress Customizer: How can you have multiple active callbacks on one control?

I have the following two Customizer controls that displays a checkbox for showing/hiding content. Each checkbox is followed by an active_callback that shows/hides the corresponding controls when the ...
2
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2answers
438 views

Change dns-prefetch to preconnect with correct protocol

I have this function in my functions.php file: function dns_prefetch_to_preconnect( $urls, $relation_type ) { if ( 'dns-prefetch' === $relation_type ) { $urls = []; } if ( '...
2
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2answers
5k views

how to create and show sessions in word press?

I am new to word press but know all the required PHP skills. I am using a form to create session in one page and then accessing those sessions in another page. I have done this already without word ...
2
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2answers
7k views

How do I make wordpress comment fields required?

Here is my form: <form action="<?php echo get_option('siteurl'); ?>/wp-comments-post.php" method="post" id="commentform" class="validate"> <?php if($user_ID) : ?> <?php ...
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3answers
1k views

“wp_enqueue_style();” don't load new edited style

First, sorry my english. I am using Local by flywheel to manager my site files and my wordpress version is 4.9.4. Here is the problem, When I use wp_enqueue_style('wharever', get_stylesheet_uri()); ...
2
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1answer
4k views

How can update custom meta for all posts

How can update custom meta (likes) for all posts that have this meta? If i used something like this: update_post_meta( $post_id, "likes", 1 ); it's required to add the post id that I need to update ...
2
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2answers
1k views

Display certain amount of posts on taxonomy archive page

I have a taxonomy archive page where I display everything under the term 'techno' I want to be able to limit this to 20 posts to a page until it paginates. At the moment it displays 10 on one page and ...
2
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2answers
8k views

How to turn off redirection from 'domain.com/login' to 'domain.com/wp-login.php'

I want to install something different than wordpress under 'mydomain.com/login', but WordPress automatically redirecting this link '/login' to '/wp-login.php'. Where can I turn off this redirection?
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3answers
6k views

How to Create a Directory in a Plugin Folder?

I am creating a plugin in WordPress Version 3.4.2. When the administrator submits a form, a new folder is created inside my plugin directory and a file saved in this new folder. But it gives me the ...
2
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2answers
1k views

Activate different theme for temporary preview

I wanted that when i access my site with specific parameter, my site used a different theme at that moment (only temporarily, to show only to me as a preview). I want it for test purposes. Is there ...
2
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1answer
2k views

Bulk Image upload and one image for each post?

I have around 3000 photos, want to upload on WordPress. Is there any way to bulk upload all the photos as one image for each post ?
2
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3answers
7k views

Run shortcode at certain resolution

I've gone a roundabout way of trying to ask a question about this here: Loading shortcode with ajax but figured it might be worth asking the fundamental question of what I am trying to do without ...
2
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3answers
10k views

Plugin.php: PHP Notice: Undefined offset: 0 in

I moved a WordPress site from one domain to another and there were a lot of white spaces that needed to be removed. The only problem that is left are the following errors: PHP Notice: Undefined ...
2
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1answer
3k views

Specified file failed upload test. wp_upload_handle

So I managed to write a peice of code that allows me to upload a zip file, im not even sure where it gets uploaded too, and I am doing it on my localhost with apache in control (www-data). the code is ...
2
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1answer
126 views

PHP Script within wordpress theme

I have a php script that I'd like to utilize within my wordpress theme. I'd like to restrict access to the page based on users belonging to particular groups so it's important to keep it within ...
2
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2answers
2k views

How can I access the “description” of a menu item?

Where you can add your menu in under appearance > menus, I have descriptions in. In my page, I want to be able to echo out that description. Not in the menu, but in my page. How can I access this ...
2
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2answers
3k views

If in parent category

I have this structure Category > Subcategory > Post I´m trying to display some content if the user it´s on a specific category, or in it´s subcategory or post. I´m using this code but it only works ...
2
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2answers
2k views

Saving metabox repeatable fields

This is a code that I'm adapting from https://gist.github.com/2057532. The problem is that I'm not being able to save the content from the new fields that I created. I had checked the other questions ...
2
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2answers
2k views

if has theme mod

Does someone know how to write the next line in wordpress PHP, because i'm not that great with PHP. If_theme_mode has content echo { my content } else { other content }; thnx
2
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3answers
2k views

Allowed memory size of 268435456 bytes exhausted (tried to allocate 64 bytes)?

I am getting this error. I have increased the memory limit upto 512M. I have more than 4000 posts with so many data. Website is working fine. But when I am trying to access the custom post type page ...
2
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2answers
5k views

Replacing a specific menu item

So, I understand how to target a specific menu using the following to add a custom code. <?php wp_nav_menu( array( 'menu' => 'Project Nav', // do not fall back to first non-empty menu '...
1
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0answers
594 views

Trying to disable plugins doens't work

I've developed a small plugin which empties the $plugin variable. And put it into the /mu-plugins folder. But it doesn't work. What am I missing? The plugin is executed. If I do a print_r on $plugin ...
1
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3answers
326 views

Wordpress Customizer not setting default value upon initial install?

I'm having some issues getting the default values set in the WordPress Customizer to save to the database upon initial install without first having the user save the Customizer to set them. I've tried ...
1
vote
2answers
12k views

Display all posts in current category

I am looking to create a behavior as shown in the following link: http://www.javaexperience.com/java-role-of-serialversionuid-in-serialization/ Here all posts from the same category are being ...
1
vote
1answer
217 views

Sort posts from multiple sites by date

I have a WordPress Multisite installation where I need to get all the posts into one feed on the main site. I have tried a using a SQL query, but that stopped me from accessing a lot of needed data. ...
1
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1answer
1k views

How to add a featured image to a existing post via php?

I'm having trouble to add a featured image to an existing post via PHP. The image resides on wp-content/upload folder. The script i'm doing, is not a plugin, theme, or something like that. It's just ...
1
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2answers
130 views

Want to separate sections of posts. Can you restart loop?

I want to break the loop into sections of posts so I can put content in between that doesn't repeat. Is it possible to end the loop and restart? My code works for my layout works if there are 10 ...
1
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2answers
2k 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
211 views

Edit postmeta when user changes user role?

I'm trying to update a postmeta field in the database called background-video. I want to clear the value from this when a user has changed the role to a user role called basic. I found this code, ...
1
vote
1answer
239 views

Wordpress PHP plugin - Settings page error

Writing a PHP plugin for Wordpress. It was an external PHP script. But now I'm having a problem. When I click submit on the page it redirects saying there are no permissions to go to that page. Edit: ...
1
vote
1answer
3k views

Edit format of Paginate_Links()

I'm using paginate_links to paginate the results of a loop. I want to style the pagination using dots instead of numbers, but I'm not sure how to go about doing this. I could try to play around with ...
1
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2answers
2k 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
2k views

List authors with posts in a category

I'm trying to create a custom widget to display contributing authors for the current category being viewed on a WordPress site. I have the following PHP code: <?php if (is_category()) { ?> // ...
1
vote
1answer
3k views

$wp_filesystem returns NULL. What are the dependencies?

I need to obtain a reference to the $wp_filesystem object. In the test below, the var_dump($wp_filesystem) returns NULL. What additional files are required in order to properly set up $wp_filesystem? ...
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3answers
2k views

get_the_content if it contains multiple lines it results in SyntaxError

I use get_the_content to pass to a javascript variable, and then back to another PHP function. This works great, but there is an issue when using get_the_content. If the post contains only one line (...
1
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4answers
6k views

removing <li> tags from wp_list_pages() using PHP

as the title states, I am trying to remove the <li></li> tags from the list that gets generated with wp_list_pages(). My thinking is to somehow run a for/foreach loop through the menu ...
1
vote
1answer
769 views

Wordpress shop: enable custormers to select product color using image thumbnails on Custom Fields

I use Wordpress Custom Fields to provide customers with various product color codes in a drop-down list, but now I would like to add the various color thumbnails for ease of selection...similar to how ...
1
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1answer
276 views

How do I edit the php/html for a particular post?

I am new to Wordpress but I am comfortable coding in html/php and want to create custom forms on some of my posts. My site is currently running on localhost. I feel very silly because I have been ...
1
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1answer
626 views

Retrieving all data from repeater fields

I have a custom field in WP called what_we_do_textarea_two. what_we_do_textarea_two is a simple repeater field which allows you to add another item to a list. what_we_do_textarea_two has a subfield ...
1
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1answer
603 views

Thumb rating for wordpress - top user

I am currently using gd star rating (thumb rating) to rate posts (articles - no rating on comments). What I really want to do is show a table of the top 5 users and their number of votes based on the ...
1
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1answer
78 views

Change Width of Featured Image Thumbnail on Add/Edit Post Page

Does anyone know of a way to change the width of the featured image on the edit post/add post page? I want to make it 50px wide. I'm not talking about the front page of the website, but the back end ...
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2answers
1k views

How to return a string that has a variable inside in a shortcode?

$output = '<p class="one"><small>'.$newsletter_one. '</small></p>' Generally, when we write short codes we publish HTML like the above one, and instead of echo use return ...
1
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2answers
9k views

Notice: Constant already defined in wp-config.php on (non-existent) line?

I've been tasked to move a website into a new domain, and I've encontered this weird issue. On the homepage, I always see these: Notice: Constant AUTOSAVE_INTERVAL already defined in /home/gturnat/...
1
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1answer
210 views

Prevent WordPress from loading comments

I'm displaying the comments for a post my way, using $comm = get_comments() and then passing $comm to wp_list_comments() (this is the reason why). How to disable WordPress from loading comments from ...

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