Xampp - Ubuntu - cant access my project in lampp/htdocs

Question

I have installed xampp to Ubuntu 12.04. I have put my project in the folder /opt/lampp/htdocs/project_is_here

When I type in the browser localhost/soap/php

Answer 1

it'll useful,

  0 -> No permission
  1 -> Execute
  2 -> Write
  3 -> write and execute(2 +1)
  4 -> Read
  5 -> Read and execute
  6 -> Read and write
  7 -> read,write and execute
  Then What about three decimal 

  1st-digit Owner

  2nd- digit Group

  3rd- digit Others

test@test:~$ sudo chown -R test:test /var/www/html/folder

test@test:~$ sudo chmod -R 666  /var/www/html/folder //-system user 

test@test:~$ sudo chmod -R 777  /var/www/html/folder // -browser with full

What is this 777 ? --> 7: you, 7: us, 7: them.