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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 ) );

wp query - WP_Query loop within WP_Query loop - WordPress ...

    https://wordpress.stackexchange.com/questions/213185/wp-query-loop-within-wp-query-loop
    <?php // define the main query $main_args = array( 'post_type' => 'page', 'post_parent' => '10', ); // execute the main query $the_main_loop = new WP_Query($main_args); // go main query if($the_main_loop->have_posts()) : while($the_main_loop->have_posts()) : $the_main_loop->the_post(); ?> <p>This is the content from the main loop</p> <?php // define the inner query $inner_args = array( 'post_type' => 'page', 'post_parent' => …

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

    https://wordpress.org/support/topic/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. For more information: https://developer.wordpress.org/reference/classes/wpdb/

is_main_query() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/is_main_query/
    This function is most commonly used within hooks to distinguish WordPress’ main query (for a page, post, or archive) from a custom/secondary query. is_main_query() may be used with both front-end queries (theme templates, plugins, etc.), as well as admin queries. It will return true if the current query is the main query, and false if not. Usage # Usage

wordpress - Using WP_Query within Plugin - Stack Overflow

    https://stackoverflow.com/questions/5275205/using-wp-query-within-plugin
    function get_valid_posts(){ $validPosts = array(); $this_post = array(); $id_pot = array(); $my_query = new WP_Query('cat=15&showposts=10'); if($my_query->have_posts()) { while ($my_query->have_posts()) : $post = $my_query->post; if(!in_array($post->ID, $id_pot)){ $this_post['id'] = $post->ID; $this_post['post_content'] = $post->post_content; …

Dinamic values within a query WordPress.org

    https://wordpress.org/support/topic/dinamic-values-within-a-query/
    add_filter( ‘visualizer_db_query’, function( $query, $chart_id ) {$query = str_replace( “LIMIT 1000”, “WHERE project_solution_state_date_2.project_id = ” . $DinamicValue . ” LIMIT 1000″, $query ); return $query;}, 10, 2 ); The variable $DinamicValue gets the value like this: $DinamicValue = $_GET[‘course_id’];

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' ); ?>

How To Use WP_Query In WordPress — Smashing Magazine

    https://www.smashingmagazine.com/2013/01/using-wp_query-wordpress/
    Jan 14, 2013 · If you've been around WordPress for a while you know how difficult it used to be to create post lists based on complex criteria while also conforming to WordPress standards. Over the course of a few years the platform has come a long way. By utilising the power of the `WP_Query` class, we can lists posts in any way we want.

Nested Loops and Custom WordPress Queries EngageWP

    https://www.engagewp.com/nested-loops-custom-wordpress-queries/
    Jan 21, 2015 · Nested Loops and Custom WordPress Queries Unless otherwise noted, any code snippet in this post goes in your theme's functions.php file or a plugin for your custom functions . This post will cover a complex WordPress query and nested loop to output custom posts organized by a custom taxonomy.

esc_sql() Function WordPress Developer Resources

    https://developer.wordpress.org/reference/functions/esc_sql/
    wp-includes/class-wp-comment-query.php: WP_Comment_Query::parse_orderby() Parse and sanitize ‘orderby’ keys passed to the comment query. wp-includes/class-wp-date-query.php: WP_Date_Query::get_sql_for_clause() Turns a first-order date query into SQL for a WHERE clause. wp-includes/class-wp-query.php: WP_Query::get_posts()
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