show shop instead of 404 page for missing products

Question

How should I show the shop instead of a 404 page when a product is missing? Currently users get a 404 page which makes them loose interest.

I use woocommerce with wordpress on a server with nginx.

Answer 1

// Missing product redirect to product category add_filter( 'rewrite_rules_array', function( $rules ) { $new_rules = array( 'shop/([^/]*?)/page/([0-9]{1,})/?$' => 'index.php?product_cat=$matches[1]&paged=$matches[2]', 'shop/([^/]*?)/?$' => 'index.php?product_cat=$matches[1]', ); return $new_rules + $rules; } );