Installing LAMP on Raspbarry pi 2

  Apache
  sudo apt-get install apache2 -y


  PHP
  sudo apt-get install php5 libapache2-mod-php5 -y

 MySQL
 sudo apt-get install mysql-server php5-mysql -y

  Restart Apache Service
  sudo service apache2 restart

  if you face problems, quick try this:-
   sudo apt-get update