How can PHP be used to implement a time-based reservation system for seats in a high-demand event?

To implement a time-based reservation system for seats in a high-demand event using PHP, you can create a database table to store seat availability and reservation information. When a user requests to reserve a seat, you can check the current time against the reservation time limit to determine if the seat is still available. If the seat is available, mark it as reserved in the database and set a reservation expiration time. 

// Connect to database
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "event_reservation_system";

$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Check seat availability
$seat_id = $_POST['seat_id'];
$reservation_time_limit = date('Y-m-d H:i:s', strtotime('+30 minutes'));

$sql = "SELECT * FROM seats WHERE seat_id = $seat_id AND is_reserved = 0";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // Reserve the seat
    $update_sql = "UPDATE seats SET is_reserved = 1, reservation_expiration = '$reservation_time_limit' WHERE seat_id = $seat_id";
    if ($conn->query($update_sql) === TRUE) {
        echo "Seat reserved successfully!";
    } else {
        echo "Error reserving seat: " . $conn->error;
    }
} else {
    echo "Seat is already reserved or unavailable.";
}

$conn->close();

Keywords

PHP time-based reservation system high-demand event seats implementation

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