Step 1. Add the following code in functions.php to enable/register widget area in the WordPress theme:

if (function_exists('register_sidebar')) {
register_sidebar(array(
'name' => 'Sidebar Widgets',
'id' => 'sidebar-widgets',
'description' => 'Widget Area',
'before_widget' => '<div id="one" class="two">',
'after_widget' => '</div>',
'before_title' => '<h2>',
'after_title' => '</h2>'
));
}


Step 2. Add the following code to the area ( sidebar, footer, header ) where you want the widget to to make a slot and add widget to it later from widgets setting panel:

<?php

if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar('Sidebar Widgets') ) : ?>

<?php endif; ?>