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get_cat_name() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/get_cat_name/
    function get_cat_name ( $cat_id ) {. $cat_id = (int) $cat_id; $category = get_term ( $cat_id, 'category' ); if ( ! $category is_wp_error ( $category ) ) {. return ''; } return $category->name; } …

wp query - WP_Query by Category Name - WordPress ...

    https://wordpress.stackexchange.com/questions/161071/wp-query-by-category-name
    Here are the valid category parameters for WP_Query. cat (int) - use category id. category_name (string)- use category slug (NOT name). category__and (array) - use category id. category__in (array) - use category id. category__not_in (array) - use …

WP_Query Class WordPress Developer Resources

    https://developer.wordpress.org/reference/classes/wp_query/
    $query = new WP_Query( array( 'category_name' => 'staff,news' ) ); Display posts that have “all” of these categories: $query = new WP_Query( array( 'category_name' => 'staff+news' ) ); Display all posts except those from a category by prefixing its id with a ‘-‘ (minus) sign. $query = new WP_Query( array( 'cat' => '-12,-34,-56' ) );

How do I get the parent category name in WordPress ...

    https://stackoverflow.com/questions/1228130/how-do-i-get-the-parent-category-name-in-wordpress-template-and-can-i-query-pos
    To get the parent category name, use the get_cat_name() function, with the parent as the parameter -- like so: $cat = get_the_category(); $parentCatName = get_cat_name($cat[0]->parent);

query_posts() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/query_posts/
    query_posts( 'cat=1&tag=apples' ); You can search for several tags using “+”. In this case, all posts belong to category 1 and tagged as “apples” and “oranges” are returned. query_posts( 'cat=1&tag=apples+oranges' ); Top ↑ Caveats # Caveats. query_posts() is only one way amongst many to query the database and generate a list of posts.

What is WordPress Database: All You Need to Know

    https://www.hostinger.com/tutorials/wordpress-database
    Aug 02, 2019 · SQL is short for Structured Query Language; it is a programming language used to manage databases. An SQL request issued to CRUD data in the database server is called a query. WordPress uses MySQL queries to store and retrieve the data and generate it into web pages. A query can become handy especially if you want to optimize your web page.

WordPress Query Vars « WordPress Codex

    https://codex.wordpress.org/WordPress_Query_Vars
    When pretty permalinks are enabled, URLs don't include query variables. Instead, WordPress transforms the URL into query vars via the Rewrite API, which are used to populate the query. Relationship to WP_Query. Query vars are fed into WP_Query, WordPress' post querying API. List of Query Vars

What is a Query in WordPress?

    https://www.wpbeginner.com/glossary/query/
    Query is a term used to describe the act of selecting, inserting, or updating data in a database. In WordPress, queries are used to access data from your MySQL database. WordPress is written using PHP and MySQL. Each time you are viewing a WordPress page, there are MySQL queries running in the background to fetch the data from database.

is_category() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/is_category/
    is_category( array( 9, 'blue-cheese', 'Stinky Cheeses' ) ); // Returns true when the category of posts being displayed is either term_ID 9, // or slug "blue-cheese", or name "Stinky Cheeses". // Note: the array ability was added in version 2.5.
    [CATITEMSBL#1]

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