mint/api-v8/public/app/ucenter/testhost.php

<?php

echo "SERVER_NAME:".$_SERVER['SERVER_NAME'].PHP_EOL;
echo "HTTP_HOST:".$_SERVER['HTTP_HOST'].PHP_EOL;

echo "SERVER_NAME:".getenv('SERVER_NAME').PHP_EOL;
echo "HTTP_HOST:".getenv('HTTP_HOST').PHP_EOL;