What alternative methods can be used in PHP to retrieve server information if $_SERVER variables are not recognized?

If $_SERVER variables are not recognized in PHP, an alternative method to retrieve server information is by using the getenv() function. This function can be used to access environment variables, including server-related information. By using getenv(), you can still retrieve important server details even if $_SERVER variables are not working. 

// Using getenv() to retrieve server information
$serverName = getenv('SERVER_NAME');
$serverPort = getenv('SERVER_PORT');
$serverSoftware = getenv('SERVER_SOFTWARE');

echo "Server Name: $serverName <br>";
echo "Server Port: $serverPort <br>";
echo "Server Software: $serverSoftware <br>";

Keywords

alternative methods PHP retrieve server information $_SERVER variables

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