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Plugin API/Filter Reference/query vars « WordPress Codex

    https://codex.wordpress.org/Plugin_API/Filter_Reference/query_vars
    Interested in functions, hooks, classes, or methods? Check out the new WordPress Code Reference!

plugin development - Using query_vars filter - WordPress ...

    https://wordpress.stackexchange.com/questions/107555/using-query-vars-filter
    function my_query_vars($query_vars){ $query_vars[] = 'my-preview'; return $query_vars; } On the actual section where I need to get that value, I tried using: global $wp_query; var_dump($wp_query->query_vars); Even with a url like the example above, the 'my-preview' pair is nowhere to be found in the $wp_query->query_vars array. Am I not doing the correct steps to register an additional query_var for …

query_vars Hook WordPress Developer Resources

    https://developer.wordpress.org/reference/hooks/query_vars/
    This filter allows query vars to be added, removed, or changed prior to executing the query. Example # Example function themeslug_query_vars( $qvars ) { $qvars[] = 'custom_query_var'; return $qvars; } add_filter( 'query_vars', 'themeslug_query_vars' );

WordPress Query Vars « WordPress Codex

    https://codex.wordpress.org/WordPress_Query_Vars
    Query vars define a query for WordPress posts. When ugly permalinks are enabled, query variables can be seen in the URL. For example, in the URL http://example.com/?p=1 the p query var is set to 1, which will display the single post with an ID of 1. When pretty permalinks are …

php - Wordpress. Filter multiple custom post_type's in a ...

    https://stackoverflow.com/questions/65966360/wordpress-filter-multiple-custom-post-types-in-a-url
    Second point in your code regarding the custom post types, when you first register your custom post type you should set the query_var argument to true if you want to use it as a query var. So to register it as a query_var when you try to create your custom post type do the following: 'query_var' => true. AN EXAMPLE OF REGISTERING A CUSTOM POST ...

get_query_var() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/get_query_var/
    33 rows · echo 'Currently Browsing Page ', $paged; To get the current pagination number on a static …

An example plugin showing how to add custom query vars ...

    https://gist.github.com/carlodaniele/1ca4110fa06902123349a0651d454057
    Oct 31, 2020 · * Register custom query vars * * @param array $vars The array of available query variables * * @link https://codex.wordpress.org/Plugin_API/Filter_Reference/query_vars */ function …

WP_Query Class WordPress Developer Resources

    https://developer.wordpress.org/reference/classes/wp_query/
    $paged = ( get_query_var('paged') ) ? get_query_var('paged') : 1; $query = new WP_Query( array( 'paged' => $paged ) ); Pagination Note: Use get_query_var('page'); if you want your query to work in a page template that you’ve set as your static front page .

add_query_arg() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/add_query_arg/
    Using a single key and value: add_query_arg ( 'key', 'value', 'http://example.com' ); Using an associative array: add_query_arg ( array ( 'key1' => 'value1', 'key2' => 'value2', ), 'http://example.com' ); Omitting the URL from either use results in the current URL being used (the value of $_SERVER ['REQUEST_URI'] ).

Tutorial: Custom URL Endpoints with WordPress Rewrite API ...

    https://awhitepixel.com/blog/custom-url-endpoints-wordpress-rewrite-api/
    Oct 02, 2019 · Handling the query vars The way you as a theme or plugin developer can figure out whether or not to show the templates for these endpoints, is by checking “query vars”; basically WordPress’ global query object. We do this by calling get_query_var () with the query as argument (‘movies’ or ‘actors’).
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