wc_get_attribute_slug_max_byte_length() │ WC 11.0.0

Get the maximum byte length allowed for a product attribute slug.

WordPress's register_taxonomy() rejects taxonomy names longer than 32 bytes (see wp-includes/taxonomy.php), and WooCommerce prefixes attribute slugs with 'pa_'. That leaves the slug itself a budget of 32 bytes minus the prefix length. The limit is measured in bytes, not characters: multibyte characters (Cyrillic, Chinese, etc.) consume 2-4 bytes each.

No Hooks.

Returns

Int. Maximum attribute slug length, in bytes.

Usage

wc_get_attribute_slug_max_byte_length();

Changelog

wc_get_attribute_slug_max_byte_length() wc get attribute slug max byte length code ^{WC 11.0.0}

function wc_get_attribute_slug_max_byte_length() {
	return 32 - strlen( 'pa_' );
}