Questions tagged [globals]

In PHP globals are variables that are available for every function. WordPress core defines several handfulls of global variables, such as `$post` and `wp_query`.

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1answer
581 views

global categories - Share specific categories in wordpress multisite

I have a wordpress multisite network. So I want to share just some categories between subsites.
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23 views

Global $post returns 2 objects for my shortcode

I made a shortcode, it does most of what I need it to do. Except for a filter I need the post id of the page the shortcode is placed. (to get some linked custom field values) And I can't expect the ...
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1answer
78 views

global $product is empty string when passed into function

I'm trying to optimize my functions.php file as I have a Woocommerce site with a bunch of customizations to the theme. Currently, my functions look like the following: add_action('wp_footer', '...
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58 views

How to Use Global Variables Inside Header and Footer

I set global variables for some custom user data in my functions.php to use them in navigation inside header and footer. if (is_user_logged_in()) { # users wordpress id global $user_id_wp; ...
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1answer
586 views

$GLOBALS['value1'] is not working

My custom PHP script works on my PC over localhost. But, when I upload my code to the 'live' WordPress site, The $GLOBALS values are just null even they work on my localhost. (Nothing wrong with the ...
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2answers
813 views

How do I pass custom shortcode-extracted variables (taxonomy) into a query function for WordPress RoyalSlider?

Plugin in question: http://dimsemenov.com/plugins/royal-slider/wordpress/ Background: This is a great plugin, and it features a 'post' version where the slider pulls content from posts. However, the ...
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1answer
1k views

Global $post not working in OOP function WordPress

I added a custom field with comment form. Below is my code.First function return post id when using var_dump function.But the last function return NULL always. class Post_Rating_Public_Helper { ...
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2answers
1k views

Accessing $post global on a custom post type archive page

I have a custom post type called projects, and its archive is at /projects, on the archive page I get notices Notice: Trying to get property of non-object every time I try to access the $post i.e. $...
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0answers
27 views

How to pass a variable from Template to add_filter-Function?

How to pass a variable from Template to add_filter-Function? I want to overwrite the Caldera recipient with this variable. For this I created the function mailRecipient() and just call it in the ...
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5answers
12k views

WordPress Multisite - global categories

Setting up a WP multisite instance - the client has an existing ontology / set of categories that they want to classify all content across the set of blogs. Also the desire is that any new categories ...
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1answer
23 views

How to prevent XSS alter custom global javascript object & methods in Wordpress

Im working on a project in Wordpress that enqueues multiple .js files where each file adds a new method to a global javascript object, this in order to make the desired methods available only if ...
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4answers
229k views

How to set and use global variables? Or why not to use them at all

UPDATE: My original question has been solved, but this is turning into a valid discussion about why not to use global variables, so I am updating the question to reflect that. The solution was <?...
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36 views

Define global custom post

I have create a custom post object with custom post metas. Like this: $post->custom_meta = get_post_meta(); $custom_post = $post; Am I how to define the $custom_post object to global in master ...
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11 views

Best way to figure out in code if I am in a new post or exiting post

I am using ACF and and ACFBuilder to create all the fields for my content post. The code that creates the field is hooked to the acf/init action. When I am creating and adding these fields, I need to ...
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1answer
2k views

Ajax Pagination on Ajax filter

Following this great tutorial I've implemented Ajax pagination with scrolling: https://www.billerickson.net/infinite-scroll-in-wordpress/. Now, I've added a second Ajax call to filter the posts by ...
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2answers
526 views

What is the alternative code to if (isset ($_POST) && !empty ($_POST) to avoid warnings?

I am trying to insert some php code to my WordPress website but it gives security warnings perhaps due to directly accessing $_POST variable. Instead of $name = $_POST['name'];, I can use $name = ...
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2answers
1k views

Custom plugin: Trying to show saved data on frontend

I'm working on my first plugin and I have made a nice settings page which saves and works. But I have split it to few files and now I can't determine if field is checked.. I have also tried ...
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1answer
51 views

Custom global variable not working in function

I've been stumped on this for a while and cannot for the life of me figure out why my function isn't able to reference my global variable. $query_obj = get_queried_object(); if ( is_a($query_obj, '...
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37 views

Hide payment method based on user role AND minimum cart value

Around April this year, we have to move our business 100% online due to the pandemic. Physical store hardly get one customer per day. after 5 months, we recognizes pattern; almost all failed COD ...
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2answers
20k views

Passing variables from header.php to template and vice verca

I've defined a variable - let's call it $header_var, which is placed in the header.php file. I would like this variable to be passed onto my template file (in this case taxonomy.php). Also I would ...
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18 views

Syn Member and subscription as global from WP Multisite Networking

Info: My site is Membership directory based where user sign up, buy services (subscription) and then have access to Member directory. I am using Ultimate member n addons and woocommerce Subscription ...
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1answer
171 views

Getting List of all registered Dashboard Widgets

I am trying to get a list of all registered meta boxes in the wordpress admin, specifically the Dashboard widgets. Now this is easily achieved with the global variable $wp_meta_boxes and does exactly ...
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2answers
5k views

Passing variables to template parts

I have one template file videos.php which has the following line of code in it (aswell as a load of HTML): <?php get_template_part('loop', 'feed-videos' ); ?> inside that template part, I have ...
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1answer
652 views

keep a variable for all pages in memory from the url

I downloaded a referrer plugin and it works fine I create my custom link and everything is fine: https://testsite.com/?r=ty5x I have a conversion system that tells me how many users have come to my ...
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1answer
161 views

How to deal with global information without creating a Singleton class

I am trying to walk away from the Singleton pattern when it comes to develop plugins for WordPress. Why? Because I have been reading in some sources (here, here, here, here ...) and came up with the ...
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1answer
976 views

What is the global $wp object used for?

In the wordpress documentation for Global Variables, I did not find information about the $wp global variable. I found a plugin which declares the global $wp variable as follows: public function ...
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1answer
30 views

What is the use of $content_width?

In the requirements of Envato I saw that they require a $content_width to be set. I searched for it on the internet but can't really understand why? I don't use it and the theme is responsive. If ...
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2answers
275 views

Woocommerce Multisite global search how to mod ajax function?

I created an installation of my multisite ecommerce to differentiate the men's and women's departments. Often, however, it happens that in the men's department they do research related to women's ...
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2answers
7k views

Get current page id, title, url, etc

Sorry but I get lost on Wordpress's codex. I am trying to add a mail this page sharing link and want to include some info from the page. In pseudo code is this possible? <a href="mailto:?subject="....
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4answers
3k views

Global $post shows null in some of my custom post types archive pages

My english is not very good looking. I have several custom post types, 'noticias' (news) 'articulos' (articles), etc. In my functions.php i enqueue scripts and styles by post_id or post_type using a ...
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1answer
72 views

External api call and make global variable for any page visitor enters , page-home, page, single etc

I am totally new to the wordpress world so excuse me if my question is not totally clear to you... I wanted to implement the following scenario for my website, The case was to call an external api ...
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2answers
2k views

Current page id returns the incorrect value

I need to capture the current page id, execute some conditional script in footer, in my own plugin function hooks to wp_footer. Here is my plugin code, but page id returning wrong value? <?php /* ...
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3answers
7k views

What is $post_id? is it a global variable in WordPress?

How can $post_id be used while echoing posts in single.php? Is it a global variable?
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1answer
499 views

Save something to global var in add_filter

I am here again with a strange question. First, I'm using ACF plugin for adding cistom fields. My code looks somethink like that: global $testMe; $testMe = 0; function my_acf_update_value( $value, $...
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0answers
67 views

Create a new query in function.php to filter blog posts

My goal is to filter blog posts (those which are requested in the blog page - Reading settings) depending on an expiration date, and then to change their category depending on a choosen future ...
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1answer
83 views

Global $wp_admin_bar always returns null

Developing a plugin and looking to access the $wp_admin_bar global variable and it always returns null? I can output $wp_version fine? function test() { global $wp_admin_bar; var_dump($...
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1answer
18 views

Suppress errors when using global function

I'm using the NinjaForms plugin which defines a Ninja_Forms() global function. Although I can call it without problem, I still get a warning/error Undefined function 'Ninja_Forms'. If this were a ...
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0answers
258 views

Insert variables into wpdb in custom post template

I'm rewriting this to try to make it easier. I am inserting into a database table information which is sent when I click on a button in the page. When I insert the data it works, unless I try to ...
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0answers
41 views

What is the correct way to obtain access to the WP_oEmbed object?

I know that WP_oEmbed is a class used by WordPress to handle oEmbeds. Is this available as a global or should I create a new instance of it? Update: I have found a function called ...
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0answers
54 views

Browser detection booleans mess. Caché plugin?

Hello, I have an issue concerning the Browser Detection Booleans. Sometimes, being in Chrome or Firefox, the page is served as being in IE, as in the attached image. Can this be related to the fact ...
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1answer
1k views

Pass variables from one widget to another widget

I wrote a widget but I need to use the variables from one widget in another...both widgets are in the same dynamic sidebar. This is what I am trying to do: I wrote a widget that adds a footer to the ...
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1answer
228 views

What is the proper method of using global $post?

I am using global $post multiple times in a class. These are my doubts Is that a bad practice? Can it result in slow websites? What's the proper way to use it inside a class class Test{ public ...
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2answers
119 views

How does WordPress make its functions globally available?

I'm trying to understand, how WP makes its countless functions globally available in any theme or plugin file(without the need to manually require any file). For instance, i've used my IDE to trace ...
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0answers
1k views

Trying to get property 'post_content' of non-object

I'm creating a wordpress theme and I created a shortcode to show an abstract of a post (the first image, title, and link) from a post (by its ID). To do this, I created a function to get the first ...
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0answers
51 views

How to access custom class methods from any include without using global

I am trying to do the following functions.php class Test { public function hello(){ return 'Hello'; } } $test = new Test(); header.php or any other include echo $test->hello();...
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5answers
9k views

Where to get information about array fields in $_REQUEST?

I just started to learn PHP and doing things with WordPress and I am a bit confused about information in Codex. Was told that Codex got all info I required but I got stuck with it. What array fields ...
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0answers
18 views

How do I get a reference to the HTML memory buffer while the page is being constructed?

I want to view & update the buffer with html "<head>" data section in it, after the head has been generated. Problem statement: I have created some shortcodes in a plug-in which, if ...
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2answers
428 views

WordPress Image Slider Looping Title Not Working

In my index page there are two slider one is working fine but the second one is giving some problems. FIRST ONE <?php global $post; $i=0; $args = array('post_per_page' => -1, 'post_type' =>...
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0answers
380 views

Ajax global variable is not getting saved (returns null)

I am trying to modify a global variable $lath , It is a shortcode. This is where i have defined it. function listing_order(){ global $lath; $lath = array('email','phone'); foreach ($lath ...
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1answer
15k views

How to pass arguments from add_settings_field() to the callback function?

I have a function like this: add_settings_field( 'contact_phone', 'Contact Phone', 'settings_callback', 'general'); That works. It calls settings_callback. Cool. The problem I have with this is: ...