WordPress Widgets de tema

//register widgets
add_action('widgets_init', function () {
    $config = [
        'before_widget' => '<section class="widget %1$s %2$s">',
        'after_widget'  => '</section>',
        'before_title'  => '<h3>',
        'after_title'   => '</h3>'
    ];
    register_sidebar([
        'name'          => __('Footer', 'sage'),
        'id'            => 'sidebar-footer'
    ] + $config);
});

// display widgets
dynamic_sidebar('sidebar-footer')
Ivan Cuaco