render_block_core_query_no_results

WordPress Version: 6.2

/**
 * Server-side rendering of the `core/query-no-results` block.
 *
 * @package WordPress
 */
/**
 * Renders the `core/query-no-results` block on the server.
 *
 * @param array    $attributes Block attributes.
 * @param string   $content    Block default content.
 * @param WP_Block $block      Block instance.
 *
 * @return string Returns the wrapper for the no results block.
 */
function render_block_core_query_no_results($attributes, $content, $block)
{
    if (empty(trim($content))) {
        return '';
    }
    $page_key = isset($block->context['queryId']) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page';
    $page = empty($_GET[$page_key]) ? 1 : (int) $_GET[$page_key];
    // Override the custom query with the global query if needed.
    $use_global_query = isset($block->context['query']['inherit']) && $block->context['query']['inherit'];
    if ($use_global_query) {
        global $wp_query;
        $query = $wp_query;
    } else {
        $query_args = build_query_vars_from_query_block($block, $page);
        $query = new WP_Query($query_args);
    }
    if ($query->have_posts()) {
        return '';
    }
    if (!$use_global_query) {
        wp_reset_postdata();
    }
    $classes = isset($attributes['style']['elements']['link']['color']['text']) ? 'has-link-color' : '';
    $wrapper_attributes = get_block_wrapper_attributes(array('class' => $classes));
    return sprintf('<div %1$s>%2$s</div>', $wrapper_attributes, $content);
}