WooCommerce Rename Checkout Fields

functions.php

add_filter( 'woocommerce_checkout_fields' , 'custom_rename_wc_checkout_fields', 10 );
function custom_rename_wc_checkout_fields( $fields ) {
	$fields['billing']['billing_first_name']['placeholder'] = 'Indtast dit fornavn';
	$fields['billing']['billing_first_name']['label'] = 'Fornavn';
	
	$fields['billing']['billing_last_name']['placeholder'] = 'Indtast dit efternavn';
	$fields['billing']['billing_last_name']['label'] = 'Efternavn';
	
	$fields['billing']['billing_company']['placeholder'] = 'Firmanavn';
	$fields['billing']['billing_company']['label'] = 'Firmanavn';
	
	$fields['billing']['billing_country']['label'] = 'Land';
		
	$fields['billing']['billing_city']['label'] = 'By';
	
	$fields['billing']['billing_postcode']['label'] = 'Postnummer';
	
	$fields['billing']['billing_phone']['label'] = 'Telefon';
	
	$fields['billing']['billing_email']['label'] = 'Email adresse';
	
	// Shipping fields
	
	$fields['shipping']['shipping_first_name']['placeholder'] = 'Indtast dit fornavn';
	$fields['shipping']['shipping_first_name']['label'] = 'Fornavn';
	
	$fields['shipping']['shipping_last_name']['placeholder'] = 'Indtast dit efternavn';
	$fields['shipping']['shipping_last_name']['label'] = 'Efternavn';
	
	$fields['shipping']['shipping_company']['placeholder'] = 'Firmanavn';
	$fields['shipping']['shipping_company']['label'] = 'Firmanavn';
	
	$fields['shipping']['shipping_country']['label'] = 'Land';
	
	$fields['shipping']['shipping_city']['label'] = 'By';
	
	$fields['shipping']['shipping_postcode']['label'] = 'Postnummer';
			
return $fields;
}