Error kenapa ya ini

Kira kira error kenapa ya ini

Warning: mysqli_query() expects parameter 2 to be string, object given in D:\xampp\htdocs\blog\functions.php on line 38

Warning: mysqli_fetch_assoc() expects parameter 1 to be mysqli_result, null given in D:\xampp\htdocs\blog\functions.php on line 40

function query($query){
  global $con;
  $result = mysqli_query($con,$query);
  $rows = [];
  while ($row = mysqli_fetch_assoc($result)) {
      $rows[] = $row;
}
    return $rows;
  }