访问http://localhost/phpmyadmin/时，出现Access Denied，可以到/opt/lampp/etc/extra/httpd-xampp.conf中，寻找
<Directory "/opt/lampp/phpmyadmin">
AllowOverride AuthConfig Limit
Order allow,deny
Allow from all
</Directory>
添加一句：Require all granted
变成
<Directory "/opt/lampp/phpmyadmin">
AllowOverride AuthConfig Limit
Order allow,deny
Allow from all
Require all granted
</Directory>