List All WordPress Query Vars: A Step Guide – WordPress Tutorial

Sometimes, we need to know what query vars are used in wordpress. In this tutorial, we will tell you how to list all of them.

The simpleset way is print global $wp_query in wordpress.

For example:

<?php
global $wp_query;
print_r($wp_query);
?>

Run this code, you will find a list query vars as follows:

WP_Query Object
(
    [query] => Array
        (
            [pagename] => wordpress-theme
        )

    [query_vars] => Array
        (
            [pagename] => wordpress-theme
            [error] => 
            [m] => 
            [p] => 0
            [post_parent] => 
            [subpost] =>

You can find all query vars used in wordpress from query_vars and current query var used in current page.