WordPress at a glance
filter is not described

woocommerce_grouped_free_price_html filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_grouped_free_price_html', 'filter_function_name_656', 10, 2 );
function filter_function_name_656( $__, $that ){
	// filter...

	return $__;
}
$__
-
$that
-

Where the hook is called

WC_Product_Grouped::get_price_html()
woocommerce_grouped_free_price_html
woocommerce/includes/class-wc-product-grouped.php 120
$price = apply_filters( 'woocommerce_grouped_free_price_html', __( 'Free!', 'woocommerce' ), $this );

Where in WP core the hook is used WooCommerce

Usage not found.