woocommerce_cart_item_class │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_cart_item_class', 'wp_kama_woocommerce_cart_item_class_filter', 10, 3 );

/**
 * Function for `woocommerce_cart_item_class` filter-hook.
 * 
 * @param  $string        
 * @param  $cart_item     
 * @param  $cart_item_key 
 *
 * @return 
 */
function wp_kama_woocommerce_cart_item_class_filter( $string, $cart_item, $cart_item_key ){

	// filter...
	return $string;
}

$string

-

$cart_item

-

$cart_item_key

-

Where the hook is called

<tr class="woocommerce-cart-form__cart-item <?php echo esc_attr( apply_filters( 'woocommerce_cart_item_class', 'cart_item', $cart_item, $cart_item_key ) ); ?>">

<tr class="<?php echo esc_attr( apply_filters( 'woocommerce_cart_item_class', 'cart_item', $cart_item, $cart_item_key ) ); ?>">

Where the hook is used in WooCommerce