Nginx location block for phpMyAdmin using an alias.

phpMyAdmin Nginx Config

location /yourlocation {
    alias /usr/share/phpmyadmin;
    location ~ \.php$ {
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $request_filename;
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php5-fpm-ssl.sock;
        fastcgi_index index.php;
    }
}