<?php
 
//get the sale price of the product whether it be simple, grouped or variable
echo $sale_price = get_post_meta( get_the_ID(), '_price', true);
 
//get the regular price of the product, but of a simple product
$regular_price = get_post_meta( get_the_ID(), '_regular_price', true);
 
//oh, the product is variable to $sale_price is empty? Lets get a variation price
 
if ($regular_price == ""){
#Step 1: Get product varations
$available_variations = $product->get_available_variations();
 
#Step 2: Get product variation id
$variation_id=$available_variations[0]['variation_id']; // Getting the variable id of just the 1st product. You can loop $available_variations to get info about each variation.
 
#Step 3: Create the variable product object
$variable_product1= new WC_Product_Variation( $variation_id );
 
#Step 4: You have the data. Have fun :)
$regular_price = $variable_product1 ->regular_price;
}
 
echo $regular_price;