wp-admin/includes/class-wp-posts-list-table.php:502Displays a formats drop-down for filtering items.
$post_typestringOne hook fires while WP_Posts_List_Table::formats_dropdown() runs, in this order:
Filters whether to remove the 'Formats' drop-down from the post list table.
protected function formats_dropdown( $post_type ) { /** * Filters whether to remove the 'Formats' drop-down from the post list table. * * @since 5.2.0 * @since 5.5.0 The `$post_type` parameter was added. * * @param bool $disable Whether to disable the drop-down. Default false. * @param string $post_type Post type slug. */ if ( apply_filters( 'disable_formats_dropdown', false, $post_type ) ) { return; } // Return if the post type doesn't have post formats or if we're in the Trash. if ( ! is_object_in_taxonomy( $post_type, 'post_format' ) || $this->is_trash ) { return; } // Make sure the dropdown shows only formats with a post count greater than 0. $used_post_formats = get_terms( array( 'taxonomy' => 'post_format', 'hide_empty' => true, ) ); // Return if there are no posts using formats. if ( ! $used_post_formats ) { return; } $displayed_post_format = $_GET['post_format'] ?? ''; ?> <label for="filter-by-format" class="screen-reader-text"> <?php /* translators: Hidden accessibility text. */ _e( 'Filter by post format' ); ?> </label> <select name="post_format" id="filter-by-format"> <option<?php selected( $displayed_post_format, '' ); ?> value=""><?php _e( 'All formats' ); ?></option> <?php foreach ( $used_post_formats as $used_post_format ) { // Post format slug. $slug = str_replace( 'post-format-', '', $used_post_format->slug ); // Pretty, translated version of the post format slug. $pretty_name = get_post_format_string( $slug ); // Skip the standard post format. if ( 'standard' === $slug ) { continue; } ?> <option<?php selected( $displayed_post_format, $slug ); ?> value="<?php echo esc_attr( $slug ); ?>"><?php echo esc_html( $pretty_name ); ?></option> <?php } ?> </select> <?php }Introduced in 5.2.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-wp-posts-list-table.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.