What information can be obtained about a user's operating system, browser, ISP, and language in PHP?

In PHP, you can obtain information about a user's operating system, browser, ISP, and language using the $_SERVER superglobal array. The $_SERVER['HTTP_USER_AGENT'] key contains information about the user's browser and operating system, while the $_SERVER['HTTP_ACCEPT_LANGUAGE'] key contains the user's preferred language. To get the user's ISP, you can use functions like gethostbyaddr($_SERVER['REMOTE_ADDR']). 

$browser = $_SERVER['HTTP_USER_AGENT'];
$language = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
$ip = $_SERVER['REMOTE_ADDR'];
$isp = gethostbyaddr($ip);

echo "User Browser: " . $browser . "<br>";
echo "User Language: " . $language . "<br>";
echo "User ISP: " . $isp . "<br>";

Keywords

User agent $_SERVER get_browser() HTTP_ACCEPT_LANGUAGE gethostbyaddr()

Related Questions