Install these packages with apt:

php5
php5-cli
php5-dev
php5-sqlite
php-pear

$ sudo apt-get install php5 php5-cli php5-dev php5-sqlite php-pear

Test if Apache and PHP are up and running typing in the browser:

http://localhost/

You should see something like:

Apache/2.0.55 (Ubuntu) PHP/5.1.2-1ubuntu1 Server at localhost Port 80

From the command line, as root:

$ sudo pear upgrade PEAR
$ sudo pear channel-discover pear.symfony-project.com

Edit /etc/php5/cli/php.ini and change the line:

memory_limit = 8M To memory_limit = 16M

Then

$ sudo pear install symfony/symfony
$ sudo pear install –alldeps http://phing.info/pear/phing-current.tgz

Using the command:

$ sudo pear config-show

we find the symfony libraries have been installed in:

$ php_dir/symfony/ /usr/share/php/symfony/ main libraries
$ data_dir/symfony/ /usr/share/php/data/symfony/ skeleton of symfony applications, default modules and configuration
$ doc_dir/symfony/ /usr/share/php/docs/symfony/ documentation

From the command line enter bellow command:

$ symfony -Vsymfony version 0.6.2

From the command line, as root:

$ mkdir /var/www/myproject
$cd /var/www/myproject
$ symfony init-project myproject
$ symfony init-app myapp

Edit /Virtual Host configuration file , and append the following at the end:

<VirtualHost 192.168.1.2:81>
ServerAdmin webmaster@localhost
ServerName servername.com
ServerAlias www.servername.com
DocumentRoot /var/www/project/web
Alias /sf /usr/share/php/data/symfony/web/sf
<Directory /var/www/project/web>
     Options FollowSymLinks MultiViews
     AllowOverride all
     Order allow,deny
     allow from all
</Directory>
</VirtualHost>