Rename cart to bag

functions.php

<?php



function woo_custom_change_cart_string($translated_text, $text, $domain) {

	$translated_text = str_replace("cart", "bag", $translated_text);
	$translated_text = str_replace("Cart", "Bag", $translated_text);
	$translated_text = str_replace("View Cart", "View Bag", $translated_text);

return $translated_text;
}

add_filter('gettext', 'woo_custom_change_cart_string', 100, 3);
add_filter('ngettext', 'woo_custom_change_cart_string', 100, 3);


add_filter( 'woocommerce_product_add_to_cart_text', 'woo_custom_single_add_to_cart_text' );                // < 2.1
add_filter( 'woocommerce_product_single_add_to_cart_text', 'woo_custom_single_add_to_cart_text' );  // 2.1 +

function woo_custom_single_add_to_cart_text() {

	return __( 'Add to Bag', 'woocommerce' );

}