cat > /etc/Nginx/sites-available/default_PHP <<END
server {
    listen 80 default;
    server_name _;
    root /var/www/$host; <--- $host is a problem child
}
END

当它完成将它注入文件时,我留下了这个：

server {
    listen 80 default;
    server_name _;
    root /var/www/;
}