How can I retrieve the hostname of a visitor's computer in a local network using PHP?

To retrieve the hostname of a visitor's computer in a local network using PHP, you can use the gethostbyaddr() function with the $_SERVER['REMOTE_ADDR'] variable, which contains the visitor's IP address. This function will return the hostname associated with the IP address. 

$ip = $_SERVER['REMOTE_ADDR'];
$hostname = gethostbyaddr($ip);
echo "Visitor's hostname: " . $hostname;

Keywords

PHP hostname visitor computer local network

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