How can PHP be utilized to dynamically adjust the layout of data displayed on a website based on screen size or device type?

To dynamically adjust the layout of data displayed on a website based on screen size or device type, you can use PHP to detect the user's device type or screen size and then conditionally load different CSS styles or HTML structures accordingly.

<?php
    // Detect the user's device type or screen size
    $device_type = get_device_type(); // Custom function to get device type
    
    // Load different CSS styles or HTML structures based on device type
    if ($device_type === 'mobile') {
        echo '<link rel="stylesheet" href="mobile_styles.css">';
    } else {
        echo '<link rel="stylesheet" href="desktop_styles.css">';
    }
?>