Checkout: Products Search Widget
The products search widget is a simple search box which can be used by your users/customers to search for products in your shop by keyword/phrase.
The plugin uses the “Shop Front Page” page to perform the products search on so go to Checkout > Configuration > Posts/Pages and Categories Settings in the plugin and ensure that you specified a page containing [wpcoproducts] in it for the “Shop Front Page” setting.
Configure the products search widget
First you must go to the Appearance > Widgets section in your WordPress dashboard where you will drag a Checkout widget to your sidebar(s).
You can then fill in a title/heading for the products search widget and be sure to select “Products Search Widget” for the “Display:” option.
Hardcode the products search widget
You can hardcode the products search widget directly into your WordPress theme with the following PHP code:
<?php if (class_exists('wpCheckout')) : ?> <?php $wpCheckout = new wpCheckout(); ?> <?php $wpCheckout -> widget('search'); ?> <?php endif; ?>
Here is the code: http://tribulant.pastebin.com/YYNuQe3S