How can the use of IDs in a loop from a database affect the functionality of multiple countdown instances on a webpage?

When using IDs in a loop from a database to generate multiple countdown instances on a webpage, each countdown instance may have the same ID, causing conflicts and affecting their functionality. To solve this issue, you can dynamically generate unique IDs for each countdown instance by appending a unique identifier to the base ID.

<?php
// Assuming $countdowns is an array of countdown data from the database
foreach ($countdowns as $key => $countdown) {
    $unique_id = "countdown_" . $key; // Generate unique ID
    echo "<div id='$unique_id' class='countdown'></div>";
}
?>