<?php
session_start();
if (!isset($_SESSION['loggedin'])) {
    exit("unauthorized");
}

include "../database.php";

$bacheca_id = $_POST["bacheca_id"];

$sql_delete_event = "DELETE FROM bacheca WHERE id = " . $bacheca_id . "";
if ($con->query($sql_delete_event) === true) {
    $sql        = "SELECT * FROM bacheca ORDER BY id DESC LIMIT 1";
    $result     = mysqli_query($con, $sql);
    $first_bacheca = mysqli_fetch_assoc($result);
    echo $first_bacheca["id"];
} else {
    echo "error";
}

$con->close();