What are the best practices for creating a virtual container in Apache to deliver PHP 5 content alongside PHP 4 content?

To create a virtual container in Apache to deliver PHP 5 content alongside PHP 4 content, you can use the AddHandler directive to specify which version of PHP to use for each file extension. By setting up separate virtual hosts for PHP 4 and PHP 5 content, you can ensure that each version is processed correctly. ```apache <VirtualHost *:80> ServerName php4.example.com DocumentRoot /var/www/php4 <Directory /var/www/php4> AddHandler application/x-httpd-php4 .php </Directory> </VirtualHost> <VirtualHost *:80> ServerName php5.example.com DocumentRoot /var/www/php5 <Directory /var/www/php5> AddHandler application/x-httpd-php5 .php </Directory> </VirtualHost> ```