Poduct on sale

gistfile1.php

<?php 

/*
**
** NOT SURE IS ANY OF THIS IS RIGHT LOL
** Thanks for your help buddy!! :)
*/

add_filter( 'woocommerce_get_price_html', 'buchanan__price_html', 100, 2 );
function buchanan__price_html( $price,$product ){
    
	if ($product= is_on_sale( )) {
    // If/Else for simple/variable
		if( $product->is_type( 'simple' ) ){
				// a simple product
				$from = $product->regular_price;
				$to = $product->sale_price;
				return '<div class="old-colt"><span class="oldcoltest">RETAIL</span> '. ( ( is_numeric( $from ) ) ? woocommerce_price( $from ) : $from ) .'</div><div class="live-colst"><span class="livecoltest">OUR PRICE</span> '.( ( is_numeric( $to ) ) ? woocommerce_price( $to ) : $to ) .'</div>';
		} elseif( $product->is_type( 'variable' ) ){
				// a variable product
				// do the code example below

				#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;
				$sales_price = $variable_product1 ->sale_price;

				return '<div class="old-colt"><span class="oldcoltest">RETAIL</span> '. ( ( is_numeric( $regular_price ) ) ? woocommerce_price( $regular_price ) : $regular_price ) .'</div><div class="live-colst"><span class="livecoltest">OUR PRICE</span> '.( ( is_numeric( $sales_price ) ) ? woocommerce_price( $sales_price ) : $sales_price ) .'</div>';
		} else {
				return '<div class="live-colst"><span class="livecoltest">PRICE ERROR</span> </div>';
		}
	} else {
		// I DONT KNOW WHAT TO PUT HERE!

	}
}


?>