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get_query_var() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/get_query_var/
    33 rows · Because get_query_var() uses the WP_Query class, which only operates within The Loop, this function cannot be used to get a url variable outside of The Loop (e.g., a WordPress admin page). Instead use $_GET[‘var_name’] as in typical PHP.

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 enabled, URLs don't include query variables.

Function Reference/get query var « WordPress Codex

    https://codex.wordpress.org/Function_Reference/get_query_var
    Check out the new WordPress Code Reference! Function Reference/get query var Languages : English • Italiano • query var 日本語 ( Add your language )

wpdb::get_var() Method WordPress Developer Resources

    https://developer.wordpress.org/reference/classes/wpdb/get_var/
    70 rows · wp-includes/class-wp-network-query.php: WP_Network_Query::get_network_ids() Used …

View all WP query variables WP-Mix

    https://wp-mix.com/wp-query-variables/
    Dec 22, 2016 · Micro Tip for the day: slice of PHP code for viewing all WordPress query variables. Very useful for figuring out custom loops and such. Just add this in any theme template file, for example just before the WordPress Loop: global $wp_query; var_dump($wp_query->query_vars); Check out View all WP Post variables to learn more. More tuts + trix on the way :)

How to Use Query Strings to Auto-Fill a Text Field in WPForms

    https://wpforms.com/docs/how-to-use-query-strings-to-auto-fill-a-text-field/
    Apr 11, 2018 · From this list, select the option called Query String Variable. Once you’ve made this selection, you’ll notice that {query_var key=""} has been added to the Default Text box. Between those empty quotes, you need to add a name (called a key) to represent this …

WP_Query Class WordPress Developer Resources

    https://developer.wordpress.org/reference/classes/wp_query/
    $query = new WP_Query( array( 'paged' => get_query_var( 'paged' ) ) ); Display posts from the current page and set the ‘paged’ parameter to 1 when the query variable is not set (first page). $paged = ( get_query_var('paged') ) ? get_query_var('paged') : 1; $query = new WP_Query( array( 'paged' => …

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.
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