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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
2k views

how to load posts to a custom post template after using template_redirect or template_include

I need to use the URL parameter ?m=1 to load every page of my wordpress with a different template but the problem is that I can't pull the text and posts that can be accessed using the canonical URL I ...
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2answers
256 views

Global Variable vs Local Variable

// MOVE REVISIONS METABOX TO BOTTOM OF EDIT-FORM.PHP $post_types = get_post_types(); add_action('do_meta_boxes', 'batteryboys_reorder_meta_boxes'); function batteryboys_reorder_meta_boxes(){ ...
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1answer
432 views

Add classname comment template from functions.php

I want to add an extra classname to my comment template (the div wrapper before the post itself) which is stated in functions.php. The classname in functions.php is an extra field in my users profile ...
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2answers
18k views

When to use global $post and other global variables?

I am trying to understand when and why I should use the global $post variable. I have tried to do the following on a post page, outside the loop, and as expected it works. <?php ...
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1answer
26 views

Settings in functions.php used by a plugin

I'm writing a simple plugin and want some settings in an array in the functions.php file. I'm thinking of adding this in the theme functions.php $test = array('haha' => 'hehe'); my_function( $...
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1answer
125 views

Use a variable created in get_header to calculate stuff in wp_footer

i am trying to create a small time tester that loads at get_header hook and the using the value does something in wp_footer... i have tried using global $var i tried putting the global var inside ...
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2answers
5k views

When and Where is `global $post` Set and Available?

Usually when people think of the global $post object it's assumed that it's actually set whenever you enter The Loop. I started to play around with how early I could actually call global $post which ...
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1answer
20k 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
1k views

how to get the post id in plugin

I have a plugin that I'm working on and I'm having trouble getting the post id so jquery can use it. I'm able to get it using the admin_head hook but I'm not sure how I can return it to jquery. I'm ...
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0answers
89 views

Sessions in plugin development?

I'm developing a plugin. At present I have two files. dotmailer.php and dotmailer-add.php. I'm creating a newsletter widget. My dotmailer.php plugin adds an admin menu, with options. It allows the ...
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1answer
684 views

Access post ID in “content_save_pre”

First time poster, pardon my mistakes. I am trying to use the content_save_pre filter to grab a URL in the first line of a post and save it into a custom meta, and also set the post format as a link. ...
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1answer
460 views

store custom WP table names in a global variable

I was being creative and put this in one of the files loaded with my plugin. Are there implications with storing the table names this way? global $wpdb; if(!defined('DB_ARTISTS')) define('...
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3answers
2k views

How can i use a global variable in a .css file generated with php?

I am including a .css which i parse with php like so <link rel="stylesheet" type="text/css" media="all" href="<?php echo get_childTheme_url(); ?>/css/productgallery.php" /> Now in ...
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0answers
14 views

setting global and using as argument [duplicate]

I've set a global variable in functions.php like so: $cat_args = array('cat1', 'cat2', 'cat3'); and tried to use it in a template file: global $cat_args; if is_cat($args): //do stuff endif; The ...
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1answer
3k views

Cannot update custom database table row

I am trying to update a row in a custom database table by $wpdb->update();. In my opinion my code is right but for some reason my database row doesn't update. Can anyone help me with this? I want ...
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1answer
231 views

Php file that doesn't recognize wordpress functions

I have a custom contact form that I am trying to process in other file: The form: <form method="post" action="<?php echo get_template_directory_uri() . '/templates/contact.php' ?>" name="...
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2answers
4k views

Should I global $wpdb outside of any of my plugin's functions scope?

I know that the general advice to global variables is to not use them at all. Still, when doing something with the Wordpress database, it is required to do global $wpdb; to access the methods ...
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1answer
248 views

Understanding WordPress Search

I am trying to create a custom search similar to the one on totaljobs.com but through a WordPress site. Essentially I would be able to search for both search terms and location simultaneously. The ...
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1answer
978 views

Current URL path variable

WordPress has a built-in variable $pagename that will give the current page. I am looking for something that will give the full url including the path before the current page. Details below. I am ...
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2answers
4k views

Using global $post; to get featured image for custom post via WP_Query

I'm using a site-wide function to add css to the <head> of the page pull in featured images of various as a responsive page background. It works great across the rest of my site but fails on a ...
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2answers
4k views

Using query_posts inside single.php loop

Inside of my loop in single.php, I used a custom query using get_posts to return posts belonging to a certain category. <?php global $post; ...
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1answer
616 views

Global functions on WPMU

I work in a multisite environment where all of the sites are related. A lot of recent developments have required me to copy and paste certain functions into many different theme folders, which causes ...
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2answers
171 views

Test if php document executed by Wordpress or directly

Active plugin PHP files are interpreted automatically when you view a page, post, admin page, etc. I could also run a plugin PHP directly if I knew the fully qualified URL, however it will most ...
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1answer
98 views

What's the right way to share data between widgets?

I've got a few custom widgets in my site, which I'm targeting to specific tags. There may be a case where there may be an overlap in widget targeting, and the desirable behaviour may be to only show ...
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2answers
624 views

What is the difference between using global $current_screen and get_current_screen()?

I have been looking at get_current_screen();. I have seen there is also a global $current_screen; that I could use. Here are two examples: // Using function function wpse_post_notice() { $...
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1answer
657 views

How can I save custom meta to one global value?

I have added a custom meta box to one of my custom post types. It contains a checkbox that will indicate that this is the "featured monthly product" (there can only ever be one). When I check this ...
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4answers
10k 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
692 views

Display Post Meta in Header

I'm trying to get page post meta in my header so I can set some meta tags. I tried to get the global post variable but it only return true. <?php global $post; global $wp_query; echo ...
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2answers
1k views

What are the disadvantages of using global variable?

I am a newbie at WordPress. In my "recent posts" shortcode, I used global $post variable, because the_title() function was giving me page's title, not post's title. I am not exactly sure, but I ...
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1answer
913 views

How to get particular data from wp_list_comments outside the loop?

I need some help,very much new to wordpress. I need only comment title and comment date from wp_list_comments function in my post, calling from outside loop, after declared $postid as global variable....
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0answers
146 views

Wordpress $GLOBALS and PHP $GLOBALS

Is the php $GLOBALS associative array over written in WordPress with the WordPress $GLOBALS? I have a piece of code that uses $GLOBALS['myvariablename'] to access a global variable. It works in php, ...
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2answers
4k views

Is $page a global variable in wordpress?

I am having a problem with a local $page variable, especially when using it in The Loop. Is it a reserved variable of Wordpress? Also where can I find a list of all those global variables?
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1answer
2k views

Detecting Embed URLs Within post_content

I need to change the way WP outputs html when given an embed URL within the content. Example content within the WP editor: This is standard content and will be wrapped in a 'p' tag. But check out ...
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1answer
56 views

how do i register global query in template

ok i think this is a basic php question but here goes: i have this working code: <!-- show the bands playing --> <?php $child_posts = types_child_posts('my-...
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1answer
193 views

key( $GLOBALS['wp_registered_sidebars'] ) is always showing the same value

I am using this code from another answer add_action( 'dynamic_sidebar', 'wpse_96681_hr' ); function wpse_96681_hr( $widget ) { static $counter = 0; // right sidebar in Twenty Ten. Adjust ...
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2answers
1k views

Will $current_user no longer be global?

I just had a look at Global variables in WP and I discovered that a lot has changed since the last time I looked. $current_user is no longer listed. Does that mean this and many other (old) globals ...
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2answers
1k views

What is a good alternative to using $content_width for image optimization?

The $content_width GLOBAL in WordPress effects many themes and even some plugins by limiting the size of images and embeds in posts, it is a requirement for themes submitted to wordpress.org. It is ...
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1answer
31 views

How to save a viewer specific option

A minimal example of my problem would be default background colour is white a custom sidebar widget offers to switch background colour to green when switched to green, background shall stay green ...
0
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3answers
61 views

Is a multisite install what I need?

I have a client who owns a chain of clubs - all of them unique and requiring different sites, however, there will be one GLOBAL login for members. The members area will include things like club ...
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1answer
12k views

get_query_var vs global query variables?

I have query vars defined in functions.php using: add_filter('init', 'add_query_vars'); function add_query_vars() { global $wp; $wp->add_query_var('profession'); } Until now, to retrieve ...
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1answer
2k views

No access to global variables?

In main.js, I have a script, which is sending an ajax request to script.php. $.ajax({ type: "POST", url: "wp-content/themes/roots/script.php", data: registerdata, success: function(...
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2answers
20k views

Defining a global array in functions.php?

I try to create an array of years, which is avaible in my template-files and in at least one other function in the functions.php. function get_the_years() { global $year_arr = range(2001, date('...
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votes
1answer
1k views

using 1 form shortcode (si or cf7) for all multisite sites [closed]

I have a network with more than 50 sites. I want to create one contact form (which means one shortcode) using contact form 7 or fast secure contact form. Then, I want to use that shortcode on all the ...
0
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1answer
93 views

The $post variable – Did I get the grasp of how the Backend actions get parsed?

I was looking for a way to attach a custom meta box to the edit screen of a page at a specific template. I found and tried this here and from my actual point of view this can't work that way. Let me ...
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2answers
30k views

How to set global variable in functions.php

I want to be able to echo the URL of the featured image of a post and after looking some on the web I found the following which works fine when I put it in a loop in my front page template. <?php ...
2
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2answers
844 views

Retrieve the template directory URI via global or get_template_directory_uri() every time?

One Wordpress function I happen to use frequently is get_template_directory_uri(). While I tried to minimize or avoid its use where I can, I still happen to have more than one call to this function in ...
4
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1answer
2k views

Using global $post v/s $GLOBALS['post']

It's probably more of a PHP question, but I would like to know if there are any differences in using global $post; echo $post->ID; when compared to echo $GLOBALS['post']->ID; to access the ...
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1answer
1k views

get_posts() and global variables

I was reading this post: When should you use WP_Query vs query_posts() vs get_posts()?, which seems to have become the go-to post for understanding the difference between the different functions for ...
2
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1answer
177 views

Change global values from templates

I am trying to check for a php variable in each of my template in order to assign it a different styling but the value seems to disappear, can you please help, I already spent hours trying to figure ...
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vote
1answer
2k views

How to make global post work with custom post type?

I was wondering to know if it's possible to use global posts with custom_types. I was working with this function: global $post; $myposts = get_posts('numberposts=4&offset=1& category=3,4'); ...