What alternative methods can be used in PHP to provide users with the option to close web pages without additional prompts?

One alternative method to provide users with the option to close web pages without additional prompts in PHP is to use the `window.onbeforeunload` event in JavaScript. This event allows you to execute a function before the window is closed, giving you the opportunity to perform any necessary actions without prompting the user.

<script>
window.onbeforeunload = function() {
  // Perform any necessary actions here
};
</script>