Title: PHP 8.3 Error – Undefined array key “address_1”
Last modified: February 19, 2026

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# PHP 8.3 Error – Undefined array key “address_1”

 *  [pedrolegend](https://wordpress.org/support/users/pedrolegend/)
 * (@pedrolegend)
 * [3 months, 1 week ago](https://wordpress.org/support/topic/php-8-3-error-undefined-array-key-address_1/)
 * Hi guys,
 * We’re getting this error on PHP 8.3: **Undefined array key “address_1”**
 * File:** services/class-rate-service.php:42**
   The plugin assumes: **$package[‘
   destination’][‘address_1’];** But during Stripe Express Checkout (Apple/Google
   Pay), `address_1` is not always set, which triggers the error when calculating
   shipping.It looks like this just needs a defensive check**$address_1 = $package[‘
   destination’][‘address_1’] ?? ”;**Can you please confirm PHP 8.3 compatibility
   and provide a fix?Thanks
 * ![](https://i0.wp.com/madarabindustries.com/app/uploads/2026/02/Screenshot-2026-
   02-19-155148.png?ssl=1)
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fphp-8-3-error-undefined-array-key-address_1%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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 * 0 replies
 * 1 participant
 * Last reply from: [pedrolegend](https://wordpress.org/support/users/pedrolegend/)
 * Last activity: [3 months, 1 week ago](https://wordpress.org/support/topic/php-8-3-error-undefined-array-key-address_1/)
 * Status: not resolved