WooCommerce – Add all upsells of a product to the cart via custom link

<?php // Do not include this if already open!

/**

 * Code goes in theme functions.php.

 * Product must have upsells, and this works with simple products only.

 * Example link: yoursite.com?add-upsells-to-cart=X, X being your product ID.

 */

add_action( 'wp_loaded', 'bulk_upsell_add_to_cart_action', 20 );

function bulk_upsell_add_to_cart_action() {

	if ( ! empty( $_GET['add-upsells-to-cart'] ) ) {

		$product_id = absint( $_GET['add-upsells-to-cart'] );

		$product    = wc_get_product( $product_id );

		if ( $product ) {

			$upsell_ids = $product->get_upsells();

			if ( $upsell_ids ) {

				$count = 0;

				foreach ( $upsell_ids as $upsell_id ) {

					if ( WC()->cart->add_to_cart( $upsell_id ) ) {

						$count ++;

					}

				}

				wc_add_notice( sprintf( _n( 'Added %d item to the cart', 'Added %d items to the cart', $count ), $count ) );

			}

		}

	}

}

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WooCommerce – Add all upsells of a product to the cart via custom link

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Published by Mike Jolley

	<?php // Do not include this if already open!

	/**
	* Code goes in theme functions.php.
	* Product must have upsells, and this works with simple products only.
	* Example link: yoursite.com?add-upsells-to-cart=X, X being your product ID.
	*/
	add_action( 'wp_loaded', 'bulk_upsell_add_to_cart_action', 20 );

	function bulk_upsell_add_to_cart_action() {
	if ( ! empty( $_GET['add-upsells-to-cart'] ) ) {
	$product_id = absint( $_GET['add-upsells-to-cart'] );
	$product = wc_get_product( $product_id );

	if ( $product ) {
	$upsell_ids = $product->get_upsells();

	if ( $upsell_ids ) {
	$count = 0;

	foreach ( $upsell_ids as $upsell_id ) {
	if ( WC()->cart->add_to_cart( $upsell_id ) ) {
	$count ++;
	}
	}

	wc_add_notice( sprintf( _n( 'Added %d item to the cart', 'Added %d items to the cart', $count ), $count ) );
	}
	}
	}
	}