Are there any best practices for efficiently updating content on a webpage without causing unnecessary page reloads?

When updating content on a webpage without causing unnecessary page reloads, one efficient approach is to use AJAX (Asynchronous JavaScript and XML) to make requests to the server and update specific parts of the page dynamically. This allows for a smoother user experience and reduces the need for full page reloads. 

<?php
// Sample PHP code snippet for updating content on a webpage using AJAX

// Check if the request is an AJAX request
if(isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    // Process the AJAX request and update content accordingly
    $newContent = "New content to be updated dynamically";
    
    // Return the updated content as a JSON response
    echo json_encode(array('content' => $newContent));
    exit;
}
?>

Keywords

AJAX DOM manipulation jQuery server-side rendering asynchronous programming

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