Change the strings of the options generated by Subscribe All The Things plugin

change_sat_option_strings.php

<?php
// Customize the default "one time option" string 
add_filter('wcsatt_single_product_one_time_option_description', 'change_sat_one_time_option_description', 10, 6);
function change_sat_one_time_option_description($none_string, $product){
	// This line of code removes all modifications that Subscribe All The Things plugin makes on the product price string (like adding "or subscribe and get...")
	WCS_ATT_Product_Price_Filters::remove( 'price_html' );
	
	$price = $product->get_price_html();
	
	// Return the default string + the price of the product
	return $none_string.' '. $price;
}

// Customize the default "subsription option" string based on product ID
add_filter('wcsatt_single_product_subscription_option_description', 'change_sat_option_description', 10, 6);
function change_sat_option_description($description, $sub_price_html, $has_price_filter, $force_subscription, $product, $subscription_scheme){
	$product_id = $product->id;
	if($product_id == '447'){
	$description = "Subscribe and save 20%";
	}
	return $description;
}

// Customize the description of a subscription option in the cart based on product ID and the subscription option
add_filter('wcsatt_cart_item_options', 'change_sat_option_cart_description', 11, 4);
function change_sat_option_cart_description($options, $subscription_schemes, $cart_item, $cart_item_key){
	if($cart_item['product_id']==447){
		foreach($options as $key=>$option){
			if($option['value']=='1_month_1'){ // change '1_month_1' with the subscription option you want to change
				$options[1]['description'] = 'Subscribe and save 20%';
			}	
		}
	}
	return $options;
}