How can the operating system, country, and browser be extracted using PHP?

To extract the operating system, country, and browser using PHP, you can utilize the $_SERVER superglobal array which contains information about the server environment. You can use $_SERVER['HTTP_USER_AGENT'] to get the user agent string which contains information about the operating system and browser. To get the country, you can use a third-party service like GeoIP to determine the user's location based on their IP address. 

$os = php_uname('s'); // Get the operating system
$browser = $_SERVER['HTTP_USER_AGENT']; // Get the browser
$ip = $_SERVER['REMOTE_ADDR']; // Get the user's IP address
$country = file_get_contents("http://ipinfo.io/{$ip}/country"); // Get the country based on IP address

Keywords

operating system country browser extraction PHP

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