wp-includes/class-wp-widget.php:143Outputs the settings update form.
$instancearraystring|void public function form( $instance ) { echo '<p class="no-options-widget">' . __( 'There are no options for this widget.' ) . '</p>'; return 'noform'; }Introduced in 2.8.0. 2 changes between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
string|void to string|null.verified against sourcestring to string|void.verified against sourcesrc/wp-includes/class-wp-widget.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.