jQuery火箭图标返回顶部代码

sudo find / -name nginx.conf
/etc/nginx/nginx.conf

sudo vi /etc/nginx/nginx.conf
        access_log /var/log/nginx/access.log;
        error_log /var/log/nginx/error.log;

tail  error_log /var/log/nginx/error.log
PHP Fatal error:  Uncaught Error: Class 'DOMDocument' not found

sudo apt-get install php-xml