How can one handle delays in loading external scripts, such as JavaScript, in PHP applications?

Delays in loading external scripts, such as JavaScript, in PHP applications can be handled by using asynchronous loading techniques. One common method is to load the script at the end of the HTML document or use the "defer" attribute to load it asynchronously. This ensures that the script does not block the rendering of the page and improves the overall performance of the application.

<!DOCTYPE html>
<html>
<head>
    <title>Delay Loading External Script Example</title>
</head>
<body>
    <!-- Your HTML content here -->

    <?php
    // Load external JavaScript file asynchronously
    echo '<script async src="external_script.js"></script>';
    ?>
</body>
</html>