This option accepts a Regular Expression to filter certain pages from all automatic listings (RSS, recent changes, search results, index, sitemap). This is useful to exclude certain pages like the ones used in the sidebar templates. The regexp is matched against the full pagename with a leading colon. If it matches, the page is assumed to be a hidden one. This is a rather cosmetic option, not a security one.

• Type: String
• Default:

Here's complex example excludes :reports:template, :reports:sidebar and their subpages:

$conf['hidepages'] = '^:reports:(?:template|sidebar)';

Another example. In this case the contents of /data/pages is

.
├── admin
│   ├── build_notes.txt
│   ├── new_software.txt
│   └── todos.txt
├── admin_links.txt
├── labels
│   └── start.txt
├── playground
│   └── playground.txt
├── sidebar.txt
├── software
│   ├── dokuwiki
│   │   └── start.txt
│   ├── kdialog
│   │   └── start.txt
│   ├── start.txt
│   └── __template.txt
├── start.txt
├── templates
│   └── start.txt
└── wiki
    ├── dokuwiki.txt
    ├── syntax.txt
    └── welcome.txt

To hide admin_links, sidebar, and everything beneath :admin, :labels, :playground, :templates, and, :wiki, use:

$conf['hidepages'] = '^:(admin*|sidebar|playground|labels|templates|wiki)';

• Configuring DokuWiki
• PCRE regex syntax