Answers for "warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, bool given in c:\xampp\htdocs\codewithharry\emp\update form.php on line 22"

Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, string given in

$sql = "select * from privinsi";
$result = mysqli_query($connection,$sql);
while($r = mysqli_fetch_array($result))
{
    // your code here
}

Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, string given in

mysqli_fetch_array($query)