add_filter('woocommerce_get_price_html', 'elex_display_striked_out_price_for_variable', 200, 2);
function elex_display_striked_out_price_for_variable($price='', $product)
{
$reg_price = '';
if($product->is_type( 'variable' ))
{
$variations = $product->get_children();
$reg_prices = array();
$sale_prices = array();
foreach ($variations as $value) {
$single_variation=new WC_Product_Variation($value);
array_push($reg_prices, $single_variation->get_regular_price());
array_push($sale_prices, $single_variation->get_price());
}
sort($reg_prices);
sort($sale_prices);
$min_price = $reg_prices[0];
$max_price = $reg_prices[count($reg_prices)-1];
if($min_price == $max_price)
{
$reg_price = wc_price($min_price);
}
else
{
$reg_price = wc_format_price_range($min_price, $max_price);
}
$min_price = $sale_prices[0];
$max_price = $sale_prices[count($sale_prices)-1];
if($min_price == $max_price)
{
$sale_price = wc_price($min_price);
}
else
{
$sale_price = wc_format_price_range($min_price, $max_price);
}
return wc_format_sale_price($reg_price, $sale_price);
}
return $price;
}