Delete Script Does not Delete rather it refreshes the page - php

Question

I created a database where I store some pieces of data and display them on the HTML table, I put a delete button but when I run the script to delete it rather refreshes it
I don't know where it fails, and down here is my code of the table
<table class="table table-striped table-advance table-hover">
<tbody>
<?php
$conn = mysqli_connect("localhost", "blog", "0000", "blog");
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$result = mysqli_query($conn,"SELECT * FROM room_details ");
echo "<tr>
<th> Room Name</th>
<th> Room No.</th>
<th> Type</th>
<th> Price</th>
<th> Action</th>
</tr>";
while($row = mysqli_fetch_array($result))
{
echo "<tr>";
echo "<td>".$row['room_name']."</td>";
echo "<td>".$row['room_number']."</td>";
echo "<td>".$row['room_type']."</td>";
echo "<td>".$row['room_price']."</td>";
echo "<td>"?><div class="btn-group">
<a class="btn btn-danger" name="delete"
href="incl/process.php?delete=<?php echo $row['id']; ?>">DELETE<i
class="icon_close_alt2"></i></a>
</div></td>
<?php echo "</tr>";
} ?>
</tbody>
</table>
and this is delete processing code,
<?php
$conn = mysqli_connect("localhost", "blog", "0000", "blog");
if(isset($_GET['delete'])) {
$id = $_GET['id'];
$stmt = $mysqli->prepare("DELETE FROM room_details WHERE id = ?");
$stmt->bind_param('i', $id);
$stmt->execute();
$stmt->close();
header("Refresh: 2; url=rooms.php");
echo '<div class="alert alert-info fade in">
<strong>SUCCESS!!</strong> Data deleted!.
</div>';
}
?>
It doesn't delete the row but now it hangs on process.php nothing is happening, where did I go wrong?

Answer 1

Apart from that you have to set the $id using $id = $_GET['delete']; instead of $id = $_GET['id']; because delete is what you are passing in the query string, the prepare method should be called on $conn.
Change this line:
$stmt = $mysqli->prepare("DELETE FROM room_details WHERE id = ?");
To this line:
$stmt = $conn->prepare("DELETE FROM room_details WHERE id = ?");

Answer 2

Not entirely sure why it's hanging, but you haven't set a variable called 'id'. Should be:
$id = $_GET['delete'];