Can't access apache-powered website at localhost

I was trying to enable php, mysql, apache on my macbook pro running yosemite. I followed this guide but it doesn't run. What's wrong in setting up a local web server on OS X Please help.....I get an error saying http://localhost/ is not available

Abhimanyus-MacBook-Pro:~ abhimanyuaryan$ cat /etc/hosts
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1       localhost
255.255.255.255 broadcasthost
#::1            localhost  


Abhimanyus-MacBook-Pro:~ abhimanyuaryan$ ls -lad /Library/WebServer/Documents /Library/WebServer/Documents/index*
drwxr-xr-x  8 root  wheel  272 Feb 18 13:29 /Library/WebServer/Documents
-rw-r--r--  1 root  wheel   49 Feb 18 13:29 /Library/WebServer/Documents/index.html
-rw-r--r--  1 root  wheel   67 Jan  6 14:08 /Library/WebServer/Documents/index.html.en

Abhimanyus-MacBook-Pro:~ abhimanyuaryan$ ps aux| grep http
abhimanyuaryan  26010   0.0  0.0  2432772    664 s000  S+   10:21PM   0:00.00 grep http