# Multiple PHP version under Ubuntu 13.04

## Update your machine
    apt-get update
    apt-get ugrade

## Install the lamp server (Apache MySQL PHP)

    apt-get install lamp-server^

## Install php-farm 

    cd /opt
    git clone git://git.code.sf.net/p/phpfarm/code phpfarm

## Compile all the PHP version you need, eg

    cd /opt/phpfarm/src
    ./compile 5.5.0

If the compilation fails, just install the libraries that cause the interruption

To verify the installation

    cd /opt/phpfarm/src/inst/bin
    ./php-5.5.0 --version

## Install FastCGI

    apt-get install libapache2-mod-fastcgi apache2-mpm-worker apache2-suexec a2enmod actions fastcgi suexec

Edit the /etc/apache2/apache2.conf, add these lines before the includes

    FastCgiServer /var/www/cgi-bin/php-cgi-5.5.0
    ScriptAlias /cgi-bin-php/ /var/www/cgi-bin/

Now create the file /var/www/cgi-bin/php-cgi-5.5.0, with this content

    #!/bin/sh
    PHPRC="/etc/php5/cgi/5.5.0/"
    export PHPRC
    
    PHP_FCGI_CHILDREN=3
    export PHP_FCGI_CHILDREN
    
    PHP_FCGI_MAX_REQUESTS=5000
    export PHP_FCGI_MAX_REQUESTS
    
    exec /opt/phpfarm/inst/bin/php-cgi-5.5.0

Make the file executable

    chmod +x /var/www/cgi-bin/php-cgi-5.5.0

Configure a VirtualHost to use the php version we just configured
eg: /etc/apache2/sites-available/example.conf 

    <VirtualHost *:80>
      ServerName example.dev
      DocumentRoot /var/www/example/
      <Directory "/var/www/example">
        AddHandler php-cgi .php
        Action php-cgi /cgi-bin-php/php-cgi-5.5.0
        <FilesMatch "\.php$">
          SetHandler php-cgi
        </FilesMatch>
      </Directory>
    </VirtualHost>

Enable the site

    a2ensite example.conf

Add the server to /etc/hosts

    127.0.0.1 example.dev

Restart apache

    service apache2 restart

If you don't get any error you will find a working installation
of PHP5.5.0 at http://example.dev :)