I have already installed lampserver in ubuntu 14.04. when i try to run http://'127.0.0.1', it shows it works. but it does not work when i try to run http://'127.0.0.1'/test.php. I have already created the test.php file in var/www/ . I cannnot figure out what is wrong with it. I have already installed php5 and mysql but it does not work.