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Remove specified products from cart when a trigger product is added
Removes one or more products from the cart when a specific product is added to the cart. Useful to be able to offer product upgrade links.
add_action( 'woocommerce_add_to_cart', function( $cart_item_key, $product_id ) {
$remove = [];
switch( $product_id ) {
// Trigger Product ID
case 1234:
// Predecessor Product To Remove
$remove[] = 1233;
break;
}
// Loop Current Cart Items
foreach( WC()->cart->get_cart() as $cart_item_key => $cart_item ) {
if( in_array( $cart_item['product_id'], $remove ) ) {
WC()->cart->remove_cart_item( $cart_item_key );
}
}
}, 10, 2 );
Instructions for Remove specified products from cart when a trigger product is added
- Log into a staging or locally hosted clone of your site.
- Install and activate Code Snippets plugin.
- WP Admin > Snippets > Add New
- Copy and paste the code from the section above.
- Check to ensure formatting came over properly.
- Customize the code as desired.
- Add a meaningful title.
- Select whether to run on front-end or back-end (or both).
- Click “Save and Activate”.
- Test your site to ensure it works.
- Disable if any problems, or recover.
- Repeat for live environment.
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License
All code snippets are licensed GPLv2 (or later) matching WordPress licensing.
Except when otherwise stated in writing the copyright holders and/or other parties provide the program as-is without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
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