How can PHP be used to track mouse movements and display relevant information based on those movements?

To track mouse movements and display relevant information based on those movements using PHP, you can utilize JavaScript to capture the mouse events and send the data to a PHP script for processing. The PHP script can then analyze the data and display relevant information based on the mouse movements.

<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $mouseX = $_POST['mouseX'];
    $mouseY = $_POST['mouseY'];

    // Process the mouse coordinates and display relevant information
    echo "Mouse X: $mouseX, Mouse Y: $mouseY";
}
?>
```

In your HTML file, you can use JavaScript to capture the mouse movements and send the data to the PHP script:

```html
<!DOCTYPE html>
<html>
<head>
    <title>Mouse Tracking</title>
</head>
<body>
    <script>
        document.addEventListener('mousemove', function(event) {
            var mouseX = event.clientX;
            var mouseY = event.clientY;

            var xhr = new XMLHttpRequest();
            xhr.open('POST', 'process_mouse.php', true);
            xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
            xhr.send('mouseX=' + mouseX + '&mouseY=' + mouseY);
        });
    </script>
</body>
</html>