Howto detect the hostname of the server?

From: Date: Sat, 26 Nov 2011 00:14:37 +0000
Subject: Howto detect the hostname of the server?
Groups: php.general 
Request: Send a blank email to php-general+get-315809@lists.php.net to get a copy of this message
Hi, how could I identify the server the script runs on? I've got a testserver on Windows and a remote system on Linux that need a couple of different settings like IP and port of db-server or folder to store logfiles. I'd like to do something like: if ( $_SERVER['some_key'] = 'my_test_box' ) {
    $db_host = '1.1.1.1';
    $db_port = 1234;
} else {
    $db_host = '2.2.2.2';
    $db_port = 4321;
} I looked into phpinfo() but haven't found anything helpful, yet. Have I overlooked something or is there another way to identify the server?

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