What role does the database play in this scenario and how can it be utilized for link switching?

The database plays a crucial role in storing information about the links to be switched. By utilizing the database, we can easily retrieve and update the links as needed. To implement link switching, we can create a table in the database to store the links and their corresponding statuses. We can then use PHP to query the database and retrieve the appropriate link based on certain conditions. 

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

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

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

// Query the database to retrieve the link to be switched
$sql = "SELECT link FROM links_table WHERE status = 'active'";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // Output data of each row
    while($row = $result->fetch_assoc()) {
        echo "Link: " . $row["link"];
    }
} else {
    echo "No active links found.";
}

$conn->close();

Keywords

database link switching PHP utilization scenario

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