What are the best practices for implementing different templates for mobile and desktop versions of a website in PHP?

When implementing different templates for mobile and desktop versions of a website in PHP, it is important to use responsive design techniques to ensure a seamless user experience across devices. One common approach is to detect the user's device type (mobile or desktop) and serve the appropriate template accordingly. This can be achieved by using user-agent detection or responsive CSS frameworks like Bootstrap. 

// Check if the user is using a mobile device
function isMobile() {
    return preg_match('/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i', $_SERVER['HTTP_USER_AGENT']);
}

// Use different templates based on the device type
if (isMobile()) {
    include('mobile_template.php');
} else {
    include('desktop_template.php');
}

Keywords

Responsive design media queries user-agent detection PHP templating adaptive design

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