lamp.conf

Install Apache 
Apache is a free open source software which runs over 50% of the world’s web servers. 
To install apache, open terminal and type in these commands: 
sudo apt-get update sudo apt-get install apache2 
 
Install MySQL 
MySQL is a powerful database management system used for organizing and retrieving data To install MySQL, open terminal and type in these commands: sudo apt-get install mysql-server libapache2-mod-auth-mysql php5-mysql 
During the installation, MySQL will ask you to set a root password. If you miss the chance to set the password while the program is installing, it is very easy to set the password later from within the MySQL shell. 
Once you have installed MySQL, we should activate it with this command: sudo mysql_install_db 
Finish up by running the MySQL set up script: 
sudo /usr/bin/mysql_secure_installation 
 
Install PHP 
PHP is an open source web scripting language that is widely use to build dynamic webpages. 
To install PHP, open terminal and type in this command. sudo apt-get install php5 libapache2-mod-php5 php5-mcrypt 
After you answer yes to the prompt twice, PHP will install itself. 
It may also be useful to add php to the directory index, to serve the relevant php index files: 
sudo nano /etc/apache2/mods-enabled/dir.conf 
Add index.php to the beginning of index files. The page should now look like this: 
<IfModule mod_dir.c> 
 
          DirectoryIndex index.php index.html index.cgi index.pl index.php index.xhtml index.htm 
 
</IfModule> 
 
Enable required PHP modules with the following command: sudo apt-get install name of the module 
Sudo apt-get install php5-cli php5-cgi
 
Sudo nano /var/www/html/info.php

cd /var/www/html/
sudo chmod 664 info.php
 
Restart apache so that all of the changes take effect: 
sudo service apache2 restart 
 
 
Install phpMyAdmin 
The easiest way to install phpmyadmin is through apt-get: 
sudo apt-get install phpmyadmin apache2-utils  
During installing period you may need to set root password for phpmyadmin

sudo ln -s /etc/phpmyadmin/apache.conf /etc/apache2/conf-available/phpmyadmin.conf
sudo a2enconf phpmyadmin
sudo /etc/init.d/apache2 reload

FINALLY:
sudo php5enmod mcrypt

Restart apache: 
sudo service apache2 restart 

Changing var/www folder permission 
sudo adduser <username> www-data
 sudo chown -R www-data:www-data /var/www 
sudo chmod -R g+rw /var/www 
 
Enable mod rewrite 
sudo a2enmod rewrite
 sudo service apache2 restart 
sudo nano /etc/apache2/sites-available/000-default.conf 

 add the following line at the end 
 
<Directory "/var/www/html">  
AllowOverride All  
</Directory> 
 
How to setup apache virtual host 
please read this very detail article here 
 
https://www.digitalocean.com/community/tutorials/how-to-set-up-apachevirtual-hosts-on-ubuntu-14-04-lts 

In short:
sudo vim /etc/apache2/apache2.conf

Add these line end of the file

# Silence "Could not reliably determine the server's fully qualified domain name"
ServerName 127.0.0.1

Or
ServerName localhost

Then restart apache2
sudo service apache2 restart 

sudo vim /etc/apache2/conf-available/appliance50.conf


sudo ln -s /etc/apache2/conf-available/appliance50.conf /etc/apache2/conf-enabled/appliance50.conf	


“ for more read official page

 
 
How to setup xdebug 
First, install XDebug, this assumes you already have a LAMP stack installed with Apache, PHP, MySQL: 
•	sudo apt-get install php5-xdebug 
This installed the latest version, which is 2.2.3 at this time.  Now update the options in PHP.INI -
 /etc/php5/apache2/php.ini  
•	# Added for xdebug 
•	zend_extension="/usr/lib/php5/20121212/xdebug.so" 
•	xdebug.remote_enable=1 
•	xdebug.remote_handler=dbgp  
•	xdebug.remote_mode=req 
•	xdebug.remote_host=127.0.0.1  
•	xdebug.remote_port=9000 
•	xdebug.max_nesting_level=300 
Restart Apache2, and you are ready to go! 
•	sudo service apache2 restart