PHP

wordpress give query a unique identity

$args = array(
    'my_custom_id' => 'customidentifier'   <-- something like this??
    'category_name' => 'news',
    'posts_per_page' => 3
);
 
$my_query = new WP_Query( $args );

wordpress give query a unique identity

add_action(
    'pre_get_posts',
    function( $wp_query_obj ) {
        if ( ! empty( $wp_query_obj->query_vars['my_custom_id'] ) ) {
            // ...
        }
    },
    100,
    1
);