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WP_Query::set() Method WordPress Developer Resources

    Sets the value of a query variable.

set_query_var() Function WordPress Developer Resources

    set_query_var (string $var, mixed $value) Sets the value of a query variable in the WP_Query class.

pre get posts - Theres a way to use $query->set('tax_query ...

    The $query variable in the filter represents a WP_Query object, so you shouldn't be passing a new WP_Query object into the method for setting that object's properties. The question you copied code from was incorrectly using the filter, which i feel is the crux of your issue.

WP_Query Class WordPress Developer Resources

    If ‘tax_query‘ is set for a query, ... Note: if the query is in a feed, wordpress overwrites this parameter with the stored ‘posts_per_rss’ option. To reimpose the limit, try using the ‘post_limits’ filter, or filter ‘pre_option_posts_per_rss’ and return -1;

Three techniques to alter the query in WordPress Press ...

    Oct 23, 2019 · The following generic code snippet uses a global var called $wp_the_query where WordPress carrefully store the initial main query. @see core code in wp-settings. The snippets uses the wordpress template_redirect hook : it’s defined in wp-includes/template-loader.php.

WP_Query: How to query a specific WordPress table ...

    The WP_Query class is designed for “the loop” (obtaining data for posts/pages) and not for general database access. WordPress has a wpdb class for this purpose, and it can be accessed through the $wpdb global variable.

Ultimate Guide to meta_query of WordPress WP_Query

    NOT REGEXP (WordPress >= 3.7) – Similar to REGEXP but meta values must not match your given regular expression; RLIKE (WordPress >= 3.7) – it is the synonym to REGEXP; How to Use "compare => between" for Dates in meta_query. You can also use meta_query to check if a custom field is between two dates.. The most important thing you have to keep in mind is that your date format should be like ...

WP_Query::set_404() Method WordPress Developer Resources

    Sets the 404 property and saves whether query is feed.

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