register_sidebar

function neuron_widget_init() {
    
    // Footer One
    register_sidebar(array(
        
        'name' => 'Footer One',
        'id' => 'footer-1',
        'description' => esc_html__('Add Widget here','neuron-ccdn'),
        'before_widget' => '<div id="%1$s" class="widget %2$s">',
        'after_widget' => '</div>',
        'before_title' => '<h3>',
        'after_title' => '</h3>'
        
    ));

    // Footer Two
    register_sidebar(array(
        
        'name' => 'Footer Two',
        'id' => 'footer-2',
        'description' => esc_html__('Add Widget here','neuron-ccdn'),
        'before_widget' => '<div id="%1$s" class="widget %2$s">',
        'after_widget' => '</div>',
        'before_title' => '<h3>',
        'after_title' => '</h3>'
        
    ));

    // Footer Three
    register_sidebar(array(
        
        'name' => 'Footer Three',
        'id' => 'footer-3',
        'description' => esc_html__('Add Widget here','neuron-ccdn'),
        'before_widget' => '<div id="%1$s" class="widget %2$s">',
        'after_widget' => '</div>',
        'before_title' => '<h3>',
        'after_title' => '</h3>'
        
    ));
    
    // Footer Four
    register_sidebar(array(
        
        'name' => 'Footer Four',
        'id' => 'footer-4',
        'description' => esc_html__('Add Widget here','neuron-ccdn'),
        'before_widget' => '<div id="%1$s" class="widget %2$s">',
        'after_widget' => '</div>',
        'before_title' => '<h3>',
        'after_title' => '</h3>'
        
    ));
    
}
add_action('init','neuron_widget_init');