memberships: get plan restriction rules, check for product categories

memberships-get-rules-sample.php

<?php

// get plan restriction rules if we have an ID, could be used in member area for example
$plan = wc_memberships_get_membership_plan( $plan_id );
$product_rules = $plan->get_product_restriction_rules();

foreach ( $product_rules as $rule ) {
	
	// get the ids of restricted items from the rules
	$restricted_items = $rule->get_object_ids();

	foreach ( $restricted_items as $item_id ) {
		
		// cast the item ID as an int
		$item_id = (int) $item_id;
		
		// check if the restricted objects are terms or not
		$term = get_term( $item_id, 'product_cat' );
		
		// if we don't have a term, catch the exception and carry on
		if ( is_wp_error( $term ) ) {
			continue;
		} else {
			// if we do have a term, do some stuff
			// do whatever you want with $term here -- ie loop categories and show a list, whatever
		}
	}
}