WordPress register custom Widget

functions.php

function custom_widget_init() {
    register_sidebar( array(
        'name'          => 'Featured + Search',
        'id'            => 'featured_search1',
        'before_widget' => '<div>',
        'after_widget'  => '</div>',
        'before_title'  => '<h2 class="featured_search1">',
        'after_title'   => '</h2>',
    ) );
    register_sidebar( array(
        'name'          => 'Just Search',
        'id'            => 'featured_search2',
        'before_widget' => '<div>',
        'after_widget'  => '</div>',
        'before_title'  => '<h2 class="featured_search2">',
        'after_title'   => '</h2>',
    ) );
    register_sidebar( array(
        'name'          => 'Just Featured',
        'id'            => 'featured_search3',
        'before_widget' => '<div>',
        'after_widget'  => '</div>',
        'before_title'  => '<h2 class="featured_search3">',
        'after_title'   => '</h2>',
    ) );
}
add_action( 'widgets_init', 'custom_widget_init' );