to display number of items in cart and total

add in header.php

<?php
   
/*
Display number of items in cart and total
*/
   
global $woocommerce;

echo "Items : ".sprintf(_n('%d item', '%d items', $woocommerce->cart->cart_contents_count, 'woothemes'), $woocommerce->cart->cart_contents_count);
echo "<br />";
echo "Total: ".$woocommerce->cart->get_cart_total();
   
?>