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filter is not described

woocommerce_order_amount_item_subtotal filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_order_amount_item_subtotal', 'filter_function_name_51', 10, 5 );
function filter_function_name_51( $subtotal, $that, $item, $inc_tax, $round ){
	// filter...

	return $subtotal;
}
$subtotal
-
$that
-
$item
-
$inc_tax
-
$round
-

Where the hook is called

WC_Abstract_Order::get_item_subtotal()
woocommerce_order_amount_item_subtotal
woocommerce/includes/abstracts/abstract-wc-order.php 1776
return apply_filters( 'woocommerce_order_amount_item_subtotal', $subtotal, $this, $item, $inc_tax, $round );

Where in WP core the hook is used WooCommerce

Usage not found.