[ubuntu] PhpMyAdmin "Wrong permissions on configuration file, should not be world writable!"

I got the same problem as you. I fixed this problem by following this post :D

But I didn't change the permission from 777 to 755 :O

http://blog.elijaa.org/index.php?post/2013/02/19/Solve-Wrong-permissions-on-configuration-file%2C-should-not-be-world-writable!-error-on-phpMyAdmin