From 9faf45a5e651a5c28e1b76849e25ab5ad512cdee Mon Sep 17 00:00:00 2001
From: Matthew Wire <mjw@mjwconsult.co.uk>
Date: Wed, 28 Apr 2021 15:04:49 +0100
Subject: [PATCH] API functions should return otherwise you get 'cannot
 interpret return values from function'

---
 api/v3/Contribution.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/api/v3/Contribution.php b/api/v3/Contribution.php
index 710c6ee7f073..277c368d4b7b 100644
--- a/api/v3/Contribution.php
+++ b/api/v3/Contribution.php
@@ -406,6 +406,7 @@ function civicrm_api3_contribution_sendconfirmation($params) {
   ];
   $input = array_intersect_key($params, array_flip($allowedParams));
   CRM_Contribute_BAO_Contribution::sendMail($input, $ids, $params['id']);
+  return [];
 }
 
 /**