WordPress at a glance
function is not described

WP_Widget_Search::form() public WP 2.8.0

Outputs the settings form for the Search widget.

{} It's a method of the class: WP_Widget_Search{}

No Hooks.

Return

null. Nothing.

Usage

$WP_Widget_Search = new WP_Widget_Search();
$WP_Widget_Search->form( $instance );
$instance(array) (required)
Current settings.

Changelog

Since 2.8.0 Introduced.

Code of WP_Widget_Search::form() WP 5.7.2

<?php
public function form( $instance ) {
	$instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );
	$title    = $instance['title'];
	?>
	<p>
		<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
		<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />
	</p>
	<?php
}