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
Create a new query in function.php to filter blog posts
The reason for this is that dashboard widgets don’t use the metabox API directly, they use an API that wraps around it, and are only registered on wp_dashboard_setup and wp_network_dashboard_setup. They’re also named dashboard widgets rather than metaboxes, so most users will not know what you’re referring to if you talk about metaboxes. Dashboard metaboxes … Read more
You’re not doing anything unusual or unsafe. You are just defining functions, which is a perfectly normal and reasonable thing to do with JavaScript. If there’s a malicious script running on your page then sure, it could redefine those methods, but it could also do other things that much worse. This is why you need … Read more