Check to see which server is which (XML output)

header("Content-type: text/xml");

$getBeta = `/usr/bin/dig beta.sampledomain.com A +short`;
$getBeta = trim($getBeta);

$amIBeta = $_SERVER[SERVER_ADDR];
$amIBeta = trim($amIBeta);

if ($getBeta == $amIBeta) {
$IAmBeta = "true";
}else{
$IAmBeta = "false"; }