(tested for Minix3 version 3.1.4-pre)
Install Apache and PHP via packman.
Currently, installation doesn't have a php.ini file and httpd.conf is incomplete.
Copy file http://svn.php.net/repository/php/php-src/branches/PHP_5_2/php.ini-dist to /usr/local/lib/gcc/php.ini
Edit /usr/local/apache/conf/http.conf and after
AddType application/x-tar .tgz
AddType application/x-httpd-php .php
Add a file phpinfo.php in /usr/local/apache/htdocs
<?php phpinfo(); ?>
Open browse and type