_wc_get_cached_product_terms() │ WC 3.0.0

Cached version of wp_get_post_terms(). This is a private function (internal use ONLY).

Internal function — this function is designed to be used by the kernel itself. It is not recommended to use this function in your code.

No Hooks.

Returns

Array.

Usage

_wc_get_cached_product_terms( $product_id, $taxonomy, $args );
$product_id(int) (required)
Product ID.
$taxonomy(string) (required)
Taxonomy slug.
$args(array)
Query arguments.
Default: array()

Changelog

Since 3.0.0 Introduced.

_wc_get_cached_product_terms() code WC 10.7.0

woocommerce/includes/wc-term-functions.php 
function _wc_get_cached_product_terms( $product_id, $taxonomy, $args = array() ) {
	$cache_key   = 'wc_' . $taxonomy . md5( wp_json_encode( $args ) );
	$cache_group = WC_Cache_Helper::get_cache_prefix( 'product_' . $product_id ) . $product_id;
	$terms       = wp_cache_get( $cache_key, $cache_group );

	if ( false !== $terms ) {
		return $terms;
	}

	$terms = wp_get_post_terms( $product_id, $taxonomy, $args );

	wp_cache_add( $cache_key, $terms, $cache_group );

	return $terms;
}