To install Apache 2.2, PHP 5, MySQL 5.1, Perl 5.8 on Solaris 11 Express just follow these steps:

1. Install Solaris 11 Express (I won`t provide help with this step)
2. Start Solaris and login as the main user
3. Start the terminal, if not done already
4. su
   
   (and change the password)
5. pkg refresh
6. pkg install amp
7. svcadm enable apache22
8. svcadm enable mysql
9. cd /var/apache2/2.2/htdocs
10. rm index.html

All PHP files etc can be placed in /var/apache2/2.2/htdocs