WordPress at Your Fingertips
filter is not described

woocommerce_order_item_display_meta_key filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_order_item_display_meta_key', 'filter_function_name_8961', 10, 3 );
function filter_function_name_8961( $display_key, $meta, $that ){
	// filter...

	return $display_key;
}
$display_key
-
$meta
-
$that
-

Where the hook is called

WC_Order_Item::get_formatted_meta_data()
woocommerce_order_item_display_meta_key
woocommerce/includes/class-wc-order-item.php 290
'display_key'   => apply_filters( 'woocommerce_order_item_display_meta_key', $display_key, $meta, $this ),

Where in WP core the hook is used WooCommerce

Usage not found.