From 69a5ce89de6658eafa974b19363b62a36ced4d43 Mon Sep 17 00:00:00 2001
From: Jon Ziebell <ziebelje@gmail.com>
Date: Sun, 22 Jan 2023 07:20:55 -0500
Subject: [PATCH] Minor changes for PHP8

---
 api/profile.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/api/profile.php b/api/profile.php
index 466eaa2..b41d2d1 100644
--- a/api/profile.php
+++ b/api/profile.php
@@ -375,7 +375,10 @@ class profile extends cora\crud {
         // List of thermostat_ids that have data for this timestamp.
         $relevant_thermostat_ids = [];
         foreach($group_thermostats as $possible_relevant_thermostat) {
-          if(strtotime($possible_relevant_thermostat['data_begin']) <= $current_timestamp) {
+          if(
+            $possible_relevant_thermostat['data_begin'] === null ||
+            strtotime($possible_relevant_thermostat['data_begin']) <= $current_timestamp
+          ) {
             $relevant_thermostat_ids[] = $possible_relevant_thermostat['thermostat_id'];
           }
         }