Run different PHP versions on virtual hosts in apache 2.2 [closed]

Original article explaining the solution no longer available. Replaced by Wayback Machine entry (Dec 2020)(https://web.archive.org/web/20190922142848/http://gggeek.altervista.org/2007/07/21/running-multiple-php-versions-on-a-single-apache-install/)

Example VHost configuration:

# Port-based virtual hosting: every php install uses a vhost on a different portListen 8447Listen 8423### BASE virtualhost### set up the main php version we're using<VirtualHost *:80>    LoadModule php5_module "E:/php5/php5apache2_2.dll"    PHPIniDir "E:/php5"    php_value extension_dir "E:/php5/ext/"    AddType application/x-httpd-php .php    AddType application/x-httpd-php-source .phps</VirtualHost><VirtualHost *:8447>    # it would be handy to use php_value directives, but CGI versions of php     will not grok them,    # so we rely on different php.ini    SetEnv PHPRC "E:/php4/"    ScriptAlias /php447/ "E:/php4/"    Action application/x-httpd-php447 "/php447/php.exe"    AddType application/x-httpd-php447 .php .inc    # apache 2.2 denies access to the php cgi executable, unless it is explicitly granted    <Directory "E:/php4/">      <Files "php.exe">        Allow from all      </Files>    </Directory></VirtualHost><VirtualHost *:8423>    SetEnv PHPRC "E:/php423/"    ScriptAlias /php423/ "E:/php423/"    Action application/x-httpd-php423 "/php423/php.exe"    AddType application/x-httpd-php423 .php .inc    <Directory "E:/php423/">      <Files "php.exe">        Allow from all      </Files>    </Directory></VirtualHost>