[{"error code":"201"}]<br />
<b>Warning</b>:  Undefined variable $db_conn in <b>/home/keiti/html/api/msafehs/apiHeatStressSolution.php</b> on line <b>35</b><br />
<br />
<b>Fatal error</b>:  Uncaught TypeError: mysqli_close(): Argument #1 ($mysql) must be of type mysqli, null given in /home/keiti/html/api/msafehs/apiHeatStressSolution.php:35
Stack trace:
#0 /home/keiti/html/api/msafehs/apiHeatStressSolution.php(35): mysqli_close()
#1 {main}
  thrown in <b>/home/keiti/html/api/msafehs/apiHeatStressSolution.php</b> on line <b>35</b><br />