i have a php script for notifications, where i faced a problem with the non-object execution. i tried lot of googling but couldn't able to solve it out..

my code as follows::

Code:
<?php 
                                $sql = "SELECT * FROM input WHERE id =".$_GET["id"]; 
								$result = mysqli_query ($conn,$sql);
							
								if ($result-> num_rows > 0) {
...