meta_is_product_attribute() │ WC 1.0

Returns true when the passed meta name is a product attribute.

Хуков нет.

Возвращает

true|false.

Использование

meta_is_product_attribute( $name, $value, $product_id );
$name(строка) (обязательный)
of the attribute.
$value(строка) (обязательный)
of the attribute.
$product_id(int) (обязательный)
to check for attribute.

Код meta_is_product_attribute() WC 10.8.1

woocommerce/includes/wc-conditional-functions.php 
function meta_is_product_attribute( $name, $value, $product_id ) {
	$product = wc_get_product( $product_id );

	if ( $product && method_exists( $product, 'get_variation_attributes' ) ) {
		$variation_attributes = $product->get_variation_attributes();
		$attributes           = $product->get_attributes();

		return (
			in_array( $name, array_keys( $attributes ), true ) &&
			isset( $variation_attributes[ $attributes[ $name ]['name'] ] ) &&
			in_array( $value, $variation_attributes[ $attributes[ $name ]['name'] ], true )
		);
	} else {
		return false;
	}
}