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WP_Query Class WordPress Developer Resources

    https://developer.wordpress.org/reference/classes/wp_query/
    cat (int) – use category id. category_name (string) – use category slug. category__and (array) – use category id. category__in (array) – use category id. category__not_in (array) – use category id. Display posts that have one category (and any children of that category), using category id: $query = new WP_Query( array( 'cat' => 4 ) );

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 category id.

wordpress - how to query_posts by category slug - Stack ...

    https://stackoverflow.com/questions/19792479/how-to-query-posts-by-category-slug
    tax_query is used to get the posts associated with certain taxonomy. {tax} (string) - use taxonomy slug. Deprecated as of Version 3.1 in favor of 'tax_query'. tax_query (array) - use taxonomy parameters (available with Version 3.1). taxonomy (string) - Taxonomy. field (string) - …

WP_Query::parse_query() Method WordPress Developer ...

    https://developer.wordpress.org/reference/classes/wp_query/parse_query/
    (intstring) Category ID or comma-separated list of IDs (this or any children). 'category__and' (array) An array of category IDs (AND in). 'category__in' (array) An array of category IDs (OR in, no children). 'category__not_in' (array) An array of category IDs (NOT in). 'category_name' (string) Use category slug (not name, this or any children ...

Passing Query String Parameters in WordPress URL UFO ...

    https://www.uforocks.com/blog/passing-get-query-string-parameters-in-wordpress-url
    Dec 10, 2014 · We simply add "msds_pif_cat" as another query variable and send the array back to WordPress. Now WordPress knows, in addition to it's existing query variables, it should add one called "msds_pif_cat," which we'll use to store the product category name as specified in the URL. However, this alone won't do the trick.

wp_list_categories() Function WordPress Developer ...

    https://developer.wordpress.org/reference/functions/wp_list_categories/
    (string) Name of the taxonomy to retrieve. Default 'category'. 'title_li' (string) Text to use for the list title <li> element. Pass an empty string to disable. Default 'Categories'. 'use_desc_for_title' (boolint) Whether to use the category description as the title attribute. Accepts 0, 1, …

How to add a CSS class based on a query string in WordPress

    https://www.embryodesign.com/how-to-add-a-css-class-based-on-a-query-string-in-wordpress/
    How to add a CSS class based on a query string in WordPress. The code below is for a query string named “theyear”. It adds the class “customHide” if the query string contains “2019”. If not, it adds the class “customHideTwo”. For example, if your site URL contains this query string: https://www.yoursite.com?theyear=2019. Add the following PHP code to your child theme …

is_category() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/is_category/
    function is_category ( $category = '' ) {. global $wp_query; if ( ! isset ( $wp_query ) ) {. _doing_it_wrong ( __FUNCTION__, __ ( 'Conditional query tags do not work before the query is run. Before then, they …
    [CATITEMSBL#1]

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