Consider that when you add a metabox, nothing force you to save the value in post meta field, you can save a global option from metabox as well. function my_add_custom_box() { $screens = array( ‘post’ ); // add or replace with your cpt name foreach ( $screens as $screen ) { add_meta_box( ‘my_sectionid’, __( ‘Featured … Read more
Short answer, no. Long Answer In your comment, you explain that you’re including wp-blog-header.php in the PHP file that generates your CSS file. This is a very bad idea. When your page references your stylesheet, your browser sees the reference and makes a separate HTTP request to your server to pull it down. If the … Read more
The $current_screen is passed as a variable to callables hooked from the current_screen hook. Before this hook, the $current_screen isn’t set up, so globalizing the variable won’t do anything anyway. Also, WordPress offers the convenience function get_current_screen() that returns the global $current_screen variable if it exists. class wpse { protected $current_screen; public function load() { … Read more
The global $post object represents the current post within The Loop and is created by the the_post() function. It enables functions like the_title(), the_content() etc. to show the title and content for the current post without needing to pass IDs or anything. This is why a post type archive doesn’t have a $post object set … Read more
Assign External Database Queries to Global Variables and Make Them Accessible
The way I’d do it is to not use global variables. This is a simple class that uses 3 methods and 1 property to hook into the_post and echo the post ID in the footer. /** * Plugin Name: WPSE_263293 Example */ class wpse_263293 { protected $ID; //* Add actions on init public function init() … Read more
Using add_filter will automatically pass $errors to your callback function: add_filter(‘form_errors’, ‘return_errors’); function return_errors($errors) { // validate $errors based on form conditions return $errors; } If the filter has more than one variable passed you can access that extra information by adding a filter priority and specifying the number of arguments to pass to the … Read more
Define it in functions.php, which is loaded on every request. However, there are far better options than a global variable: a function a template part if it’s a template you’re defining filters
OK, so here’s the first time I’m going to recommend a plugin as a solution… But it’s really the easiest solution in this case, I guess… There’s a great plugin called Redirection in plugin repository (https://pl.wordpress.org/plugins/redirection/). It allows you to define all kind of redirections. You can decide if it should be 301 or 302 … Read more
There’s nothing wrong with using the global $post variable per se, although there are people who will say that using global variables is always bad. But since you’re using it multiple times in the same object, it would be better to just get the post once and store it in a class property. I prefer … Read more