how create widget widget in wordpress
/*  add this code in footer.php child theme file  */
		<div id="footer-sidebar" class="secondary">
			<div id="footer-sidebar1">
				<?php
				if(is_active_sidebar('footer-sidebar-1')){
				dynamic_sidebar('sidebar1');
				}
				?>
			</div>
			<div id="footer-sidebar2">
				<?php
				if(is_active_sidebar('footer-sidebar-2')){
				dynamic_sidebar('sidebar2');
				}
				?>
			</div>			
		</div>
        
/*  add this code in functions.php child theme file */
    
    register_sidebar( array(
	'name' => 'Footer #1',
	'id' => 'sidebar1',
	'before_title' => '<h3 class="widget-title">',
	'after_title' => '</h3>',
	) );
	register_sidebar( array(
	'name' => 'Footer #2',
	'id' => 'sidebar2',
	'before_title' => '<h3 class="widget-title">',
	'after_title' => '</h3>',
	) );
    
    }
add_action( 'wp_enqueue_scripts', 'twentytwenty_child_enqueue_child_styles' );