What are the best practices for implementing real-time updates or time displays in PHP, especially in relation to browser compatibility?

When implementing real-time updates or time displays in PHP, it is important to use AJAX to asynchronously update the content on the page without needing to refresh the entire page. This ensures a seamless user experience and reduces server load. Additionally, make sure to properly handle time zones and formatting to display accurate and user-friendly timestamps. To ensure browser compatibility, test your implementation across different browsers and devices to catch any potential issues. 

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
    function updateTime() {
        $.ajax({
            url: 'get_time.php',
            success: function(data) {
                $('#current-time').text(data);
            }
        });
    }
    
    updateTime();
    setInterval(updateTime, 1000);
});
</script>
</head>
<body>
    <div id="current-time"></div>
</body>
</html>

Keywords

WebSockets Server-Sent Events JavaScript setInterval Cross-browser Compatibility

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