Before installing DokuWiki on OpenSolaris be sure to have the following packages installed:

• SUNWapch22 (Apache webserver)
• SUNWapch22m-php52 (PHP module for Apache)
• SUNWphp52 (Main PHP package. Don't forget this! It contains all the runtime libraries like zlib.so, bz2.so etc.. This package is not installed automatically with SUNWapch22m-php52)

Then continue with the regular installation.