Is using JavaScript or a JavaScript framework like Mootools or JQuery a better approach for time-based functionality in PHP?

When it comes to time-based functionality in PHP, using JavaScript or a JavaScript framework like Mootools or jQuery is a better approach as it allows for dynamic updates on the client-side without the need to reload the page. This can be particularly useful for features like countdown timers, real-time updates, or scheduling events.

// PHP code snippet for integrating JavaScript countdown timer using jQuery

<!DOCTYPE html>
<html>
<head>
    <title>Countdown Timer</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
    <div id="countdown"></div>

    <script>
        $(document).ready(function() {
            var countDownDate = new Date("Oct 31, 2022 00:00:00").getTime();

            var x = setInterval(function() {
                var now = new Date().getTime();
                var distance = countDownDate - now;

                var days = Math.floor(distance / (1000 * 60 * 60 * 24));
                var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
                var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
                var seconds = Math.floor((distance % (1000 * 60)) / 1000);

                document.getElementById("countdown").innerHTML = days + "d " + hours + "h "
                + minutes + "m " + seconds + "s ";

                if (distance < 0) {
                    clearInterval(x);
                    document.getElementById("countdown").innerHTML = "EXPIRED";
                }
            }, 1000);
        });
    </script>
</body>
</html>