Custom Class if Item is in Cart Woocommerce

customwoocartclass.php

<?php 
global $woocommerce;
// Extra post classes
$classes = array();
if ( 0 == ( $woocommerce_loop['loop'] - 1 ) % $woocommerce_loop['columns'] || 1 == $woocommerce_loop['columns'] )
	$classes[] = 'first';
if ( 0 == $woocommerce_loop['loop'] % $woocommerce_loop['columns'] )
	$classes[] = 'last';
// If item is in cart add this class
foreach($woocommerce->cart->get_cart() as $cart_item_key => $values ) {
	$_product = $values['data'];

	if( get_the_ID() == $_product->id ) {
		$classes[] = 'in-cart';
	}
}
?>