Questions tagged [variables]

A variable is a storage location and an associated symbolic name (an identifier) which contains some known or unknown quantity or information, a value. The variable name is the usual way to reference the stored value; this separation of name and content allows the name to be used independently of the exact information it represents.

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Replacing string with a variable in php

I have following code in my plugin of Wordpress: wp_localize_script('ffd_js_script', 'myAjax', array( 'ajaxurl' => admin_url('admin-ajax.php'), 'idinfo' => $...
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3answers
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How to make variables in URL look like the permalink structure?

I've been looking for the answer to this everywhere but with no success and that's why I'm asking here. I don't even know if the question is the right one. In any case, I'll try to explain. I have ...
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4answers
9k views

How to tell if $query_var isset?

I tired to use isset($queryvar) but that didnt work, so I implemented my own function qv_isset, but it runs into a problem when $ch is set to 0. $cls = get_query_var('cls'); $ch = get_query_var('ch');...
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2answers
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When would you use $_post instead of $post?

I've seen some examples that use $_post instead of $post. What's the difference and when would you use $_post instead of $post? Example: if (have_posts()) : while (have_posts()) : the_post(); if(!...
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2answers
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What is the $current_screen global variable?

What does it mean by a screen? I've had a look in the codex and don't understand (I'm a newbie). Thanks.
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1answer
3k views

How does the $post_type global variable work?

I need to output the name of the custom post type within archive.php and single.php. I would use something like this: if ( 'staff' == get_post_type() ) { $post_type = 'staff'; } echo '<div ...
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1answer
2k views

Admin: global $post empty

I tried to get $post var outside function php in wordpress admin panel. The only way that I find to access to $post is to add_action. However I want to get this var outside the add_action and global ...
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2answers
108 views

How do you Query posts with nothing in common?

We can get multiple posts manually in a page, but that's generated in a template, AFTER the default query returned something else (page/post, etc) How do you query multiple posts in a public query, ...
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2answers
2k views

Variable in Array Not Working

I having an issue getting a variable to work for one of my arguments in a query. I am using a custom post type and category name as terms to determine which categories are displayed. When I hardcode ...
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1answer
325 views

Is it better to assign functions like get_the_id() to a variable if it's used multiple times?

If I call get_the_ID() multiple times throughout my file, would it be better performance wise to assign get_the_ID() to a variable? // Call get_the_ID() directly function_that_needs_post_ID( ...
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2answers
3k views

Using variable in two functions

What would be the right way of using variable with same data in two functions? Is next approach good practice? I have a few of these variables set up in functions.php $a = array('asdf', 'asdf', '...
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2answers
4k views

How to declare a JS variable in an AJAX call

I'm using: wp_localize_script( $handle, $namespace, $variables ); to declare some variables before the initial AJAX call is made, but I imagine I can't do the same thing again within a callback ...
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2answers
251 views

Why (and how?) is get_header() erasing all my stuff?

I have a page.php in which I am defining a custom sub-menu to pass to header.php. I've tried using a constant (clumsy, I know): define("CUSTOM_MENU", "<ul><li>Test</li></ul>"...
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3answers
325 views

Accessing $post variable from template part

Here is a section of code that I have in a template file — to display sub-navigation if the page has child-pages: <?php // display sub-nav if page has children ?> <?php $children = get_pages(...
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3answers
4k views

Echo one category as title when post has multiple categories?

UPDATED QUESTION to be CLEARER Here's my situation: Wordpress top navigation has several menu items that jump to an array of posts within a specific category. For example, if you click "necklaces" ...
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1answer
494 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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1answer
3k views

stop the_permalink printing and save as variable?

Is there a way i can get the_permalink as a variable? I need to build an info window with it but it wont appear in the $infoWindow variable... <? $link = the_permalink($post->ID); // prints ...
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1answer
190 views

Why does a variable work on the front page but return NULL on all other pages?

Hey all. For my theme, I have multiple sidebars. Each sidebar file has a variable of $sidebar_id assigned to it. So, for sidebar-1.php, $sidebar_id = 1, for sidebar-2.php, $sidebar_id = 2, and so on. ...
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1answer
110 views

Getting RGBA colour from gutenberg colourpicker

I'm working on a block that has it's own colour picker. This is working fine and I can see my background colour changing however I'm only able to get the hex value for the colour. I'm changing the ...
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1answer
48 views

Locating Global Variables

I am now the admin of our company site using Wordpress. We'd like to change some things on the home page, but unfortunately the items we want to change seem to be built in to the theme. I want to ...
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1answer
2k views

Pass PHP variable to JavaScript without inline JS

So everybody and their mother says to use wp_localize_script to pass PHP variables client side. Even though the function is not actually made for this purpose, everybody does it. Kind of like Q-Tips: ...
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1answer
94 views

Count the number of times the search form template gets included on a page

I've got a template that has a search form in several locations. Each search form is identical, containing a text input, two radio buttons, two labels associated to the radio buttons, and a submit ...
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2answers
231 views

Global variables during plugin activation , deactivation and uninstall operarations

For activation hooks codex states that you have to be explicit on globals: A note on variables during activation But that seems not to be working on uninstall.php If i define a global in my main ...
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1answer
4k views

Validate form in functions.php, send errors back to template

I have a form in a template that upon submission should be validated, and any errors should be displayed, and if no errors, insert the data into the database. I'm new to wordpress, but my idea was ...
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2answers
1k views

How to get variables from fucntion.php to my plugin files

I have written a function in functions.php that gets variables from a contact form and sends the inputs (and some other info like IP and location..) to my email. I am starting to work on my first ...
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2answers
3k views

Print string to footer using wp_footer option

add_action('wp_footer','slider_option'); function slider_option() { $option ="<script>script function data </script>"; echo $option; } I want to print or ...
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2answers
610 views

Using Multiple Queries of “home_url” vs. Calling a Variable Multiple Times

Question Since I am using multiple instances of home_url() in one page template, I was curious if the following method would speed up my page load time. My method is to store the output of home_url() ...
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2answers
610 views

Can wp_list_comments output into variable?

Is there any way how to output wp_list_comments() into a variable? Something like $output = wp_list_comments(array('reverse_top_level' => false ), $comments); I am writing a plugin and it would ...
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1answer
651 views

Storing state between hook functions

I have two functions which I'm hooking into a plugin. Both functions are called (at different times) during a single page creation by the server. I want to set a flag in function_a which can be read ...
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2answers
1k views

Putting PHP variables into javascript [duplicate]

I've created a simple theme options page for my site. The options page contains three input fields. I can output the the fields by using get_option. The three fields are called using the following: ...
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1answer
2k views

Shortcodes and a list of IDs?

I'm creating a simple shortcode function and need to specify a list of IDs as a variable. I've checked the Codex but I'm not sure how this is handled. The shortcode is: [video_vote users="13027,...
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1answer
607 views

WP_Query Variable inside Array

The array below with "'taxonomy' => 'age'" isn't working, if I copy and paste the array "array( '19', '20' )" in place of the variable it works fine. I just started picking up PHP so go easy on me :) ...
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1answer
196 views

How to rewrite URL with PHP variables with htaccess to a normal looking URL?

I want to change an old database website that is not made in WordPress to WordPress. My site uses PHP variables so the URL is originally: example.com/index.php?tl=1&pg=2&bs=3&hcbs=4&...
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1answer
344 views

Using a variable in is_page(array())

Similarly to this topic I need to extract some page IDs from user input (a theme options admin page), store them in a variable, and then filter using the is_page() filter. The input consists of ...
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1answer
76 views

Plugin. Html code in Template

perhaps i am blind or something but i searched alot, here and also wordpress codex and similar. In example i wrote a plugin that reads something from database and print someting. But how can i archive ...
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1answer
635 views

Cannot get grandparent object

I'm using the following code in order to get the ID of the current page's grandparent and great grandparent: <?php $current = get_post($post->ID); $grandparent = $current->post_parent; ...
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1answer
254 views

Static variable and add_rewrite_rule?

Im building a minor website and i want whenever a person uses a certain link, he gets redirected to the frontpage - and a formular opens. fx: www.homepage.com/example/ -----> www.homepage.com ...
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1answer
46 views

How can i use the same template file with a widget and category loop?

i wrote a widget and i want to use category template which is located in "themename"/template-parts/content.php". <?php // Category.php while ( have_posts() ) : the_post(); get_template_part( '...
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2answers
5k views

Call global variable array() in woocommerce child/template

So I have this in my functions file - it defines the products that are not eligible for free shipping. It works everything is fine. //functions.php function my_free_shipping( $is_available ) { ...
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1answer
1k views

How to fix Uninitialized string offset: error on a checkbox in WP Settings API

I am trying to create an options page with a checkbox field. The checkbox is working fine but when I uncheck it and save settings, an error string shows on Notice: Uninitialized string offset: 0 in ...
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1answer
551 views

get_term_link() returns correct - But illogical error-messages disturb

I've a really strange issue with Wordpress and the get_the_link()-function and a following issue with objects who are objects, but identified as non-object-error, itself they are working. First the ...
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1answer
431 views

Assigning WP functions which echo to PHP variables

I am creating a settings page. If I use the default example it works fine. <form method="post" action="options.php"> <?php if(isset( $_GET['settings-updated'])) { ?> <div class=...
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1answer
1k views

Variable scope producing undefined variable notices in included files

I'm building a Wordpress Theme and on the front page the user is able to select how they would like to order their posts. I've then created two functions that take the users selection through the ...
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2answers
1k views

Passing values from a widget to a function within a plugin

I have a plugin that is built with many widgets. A widget's bundle. Each widget creates it's own custom CSS code. Instead of having messy source code where I display 15 different sets of inline CSS ...
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1answer
2k views

How do i calculate the total of values of custom fields in custom post types?

So the title is a bit unclear, but here is what i have: Custom post type: Projects Custom post type: Investments        + Custom field: Amount And i have one page ...
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1answer
2k views

how to put a custom field value in variable

function zh_get_invoice_round_off_number() { global $post; return get_post_meta($post->ID, 'invoice_round_off_number', true); } function zh_invoice_round_off_number() ...
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2answers
7k views

How can I Add a variable PHP in the Menu Nav

I want to add a variable in the Menu, for passing a value in all my page. The purpose is to retrieve a value for transport to another web site (from my website links) to the tracking, this value ...
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1answer
1k views

Use <?php echo $_GET['ref']; ?> to track referrals

I am setting up my wp site and i have it setup like this www.mydomain.com/?ref=AFFILIATEID thats alright if they land on the page they are directed to but if they go off page onto another one, how do ...
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1answer
2k views

Pagination for category slug returns 404 when page >= 2

I have a custom type and the slug is: 'rewrite' => array('slug' => 'blog/%blogs_tax%'), And after register_post_type() I have a function to rewrite the slug variable. I works fine, but I have ...
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1answer
242 views

Use post object from first query in second query

I have a post ID stored in a variable from my first query and I'd like to use that to highlight the post with the same ID in my second query, but it's not working. First loop: <?php if (...

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