sidebar-register.php

<?php
/**
 * Register widget areas.
 */
function _action_theme_widgets_init() {
	if( function_exists('fw_get_db_settings_option') ){
		$sections = fw_get_db_settings_option('footer_section');
		if(!empty($sections)){
			foreach ($sections as $section) {
				$footer_widgets = $section['footer_widgets'];
				if(!empty($footer_widgets)){
					$i=0;
					foreach ($footer_widgets as $footer_widget) {
						register_sidebar( array(
							'name'          => $footer_widget['footer_widget_name'],
							'id'            => strtolower(str_replace(' ', '-', $footer_widget['footer_widget_name'])),
							'before_widget' => '<div class="zl_foo_widget" id="%1$s">',
							'after_widget'  => '<div class="clear"></div></div>',
							'before_title'  => '<h3 class="zl_foo_wid_head"><span>',
							'after_title'   => '</span></h3>',
						) );
					$i++;
					}
				}
			}
		}
	}
}

add_action( 'widgets_init', '_action_theme_widgets_init' );