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WP_Query Class WordPress Developer Resources

    https://developer.wordpress.org/reference/classes/wp_query/
    $query = new WP_Query( array( 'pagename' => 'contact' ) ); Display child page using the slug of the parent and the child page, separated by a slash (e.g. ‘parent_slug/child_slug’): $query = new WP_Query( array( 'pagename' => 'contact_us/canada' ) ); Display child pages using parent page ID: $query = new WP_Query( array( 'post_parent' => 93 ) );

Query Overview « WordPress Codex

    https://codex.wordpress.org/Query_Overview
    Obtains the list of query variables that is currently in effect. For each query variable, WordPress checks to see if it has been set by permalink parsing, POST submission, or GET submission, and if so, WordPress saves the variable's value into the query specification array ($wp->query_vars, part of class WP in wp-includes/class-wp.php).

Plugin API/Filter Reference/request « WordPress Codex

    https://codex.wordpress.org/Plugin_API/Filter_Reference/request
    Plugin API/Filter Reference/request This filter is applied to the query variables that are passed to the default main SQL query that drives your page's content.

What is a Query in WordPress?

    https://www.wpbeginner.com/glossary/query/
    WordPress comes with built-in functions and classes allowing developers and users to query database. For example, WP_Query, WP_User_Query, get_comments(), get_the_terms(), get_posts(), wp_get_recent_posts(), etc. Below is an example of querying the database for posts within a category using WP_Query class. $query = new WP_Query('cat=12');

WP_REST_Request Class WordPress Developer Resources

    https://developer.wordpress.org/reference/classes/wp_rest_request/
    // Manual creation: $request = new WP_REST_Request( 'GET', '/wp/v2/posts' ); // From a URL (if your site is at http://example.com/): $request = WP_REST_Request::from_url( 'http://example.com/wp-json/wp/v2/posts' ); // GET by default; to change the method, you …

parse_request Hook WordPress Developer Resources

    https://developer.wordpress.org/reference/hooks/parse_request/
    Top ↑ More Information # More Information. This action hook is executed at the end of WordPress’s built-in request parsing method in the main WP() class.. Attention! The parse_request hook affects only the main query and not queries made with wp_query, for example.

What is WP_Query in WordPress?

    https://www.wpbeginner.com/glossary/wp_query/
    It is possible for developers to directly query WordPress database. However, WP_Query is one of the recommended ways to query posts from WordPress database. Below is an example of a simple WP_Query which displays posts from movies category: <?php // The Query $the_query = new WP_Query( 'category_name=movies' ); ?>
    [CATITEMSBL#1]

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