Display “product already in cart” instead of “add to cart” button

/** * Change the add to cart text on single product pages */ add_filter( 'woocommerce_product_single_add_to_cart_text', 'woo_custom_cart_button_text' ); function woo_custom_cart_button_text() { global $woocommerce; foreach($woocommerce->cart->get_cart() as $cart_item_key => $values ) { $_product = $values['data']; if( get_the_ID() == $_product->id ) { return __('Already in cart - Add Again?', 'woocommerce'); } } return __('Add to cart', 'woocommerce'); } /** * Change the add to cart text on product archives */ add_filter( 'add_to_cart_text', 'woo_archive_custom_cart_button_text' ); function woo_archive_custom_cart_button_text() { global $woocommerce; foreach($woocommerce->cart->get_cart() as $cart_item_key => $values ) { $_product = $values['data']; if( get_the_ID() == $_product->id ) { return __('Already in cart', 'woocommerce'); } } return __('Add to cart', 'woocommerce'); }