From its inception, Pm Wiki has been designed so that WikiAdministrators can greatly customize the way Pm Wiki displays pages and the markup sequences used to generate pages. (This is even mentioned explicitly in PmWikiPhilosophy #4.) As a result, the core pmwiki.php script makes extensive use of PmWiki.Variables to determine how markup sequences will be processed and what each individual page will output.
The bulk of this page describes how customizations work in general, see PmWiki.DocumentationIndex for specific customizations that are commonly performed at many Pm Wiki installations, including:
The simplest type of customization is merely setting a variable to 1 (or TRUE). Here's an example that enables ?action=diag and ?action=phpinfo actions:
You can begin a line with a "#" (an octothorpe, a.k.a. a hash symbol or pound sign) to add a comment. Additionally, some built-in Pm Wiki variables take values other than 1 or 0 (true or false). Here's another example that customizes the wiki's behavior with respect to search engine web robots (see Cookbook:ControllingWebRobots):
# Allow the site to be indexed by search engines. $MetaRobots = 'index,follow'; $EnableRobotCloakActions = 1;
The scripts/ subdirectory (below the directory holding the pmwiki.php script) has many customizations. The Pm Wiki Cookbook contains many example customizations (recipes) that you can download into the cookbook/ subdirectory, The first few lines of each of these scripts generally contain instructions about how to enable (and use) the feature provided by the script.
These customizations are included in your config.php site configuration. For most scripts this is done by simply adding lines like:
at the end of the config.php file to enable them.
Some of the scripts are automatically enabled for you via the scripts/stdconfig.php script unless you disable it by setting
Note that you should strongly resist the temptation to directly modify the pmwiki.php script or the files in the scripts/ subdirectory. Any modifications you make to these files will probably be overwritten whenever you perform a PmWiki.Upgrade. Instead, look at some of the sample scripts for examples of customizations that can be performed from config.php. You can even create your own script to do a customization and use
How do I get the group / page name in a local configuration file (e.g. local/config.php)?
Use the following markup in pmwiki-2.1.beta21 or newer:
## Get the group and page name $pagename = ResolvePageName($pagename); $group = PageVar($pagename, '$Group'); $name = PageVar($pagename, '$Name');
Can I remove items from the wikilib.d folder on my site?
Yes, the files in wikilib.d/ can be safely removed. They'll reappear again when you upgrade, however. If you want to permanently configure your site so that these distribution pages don't appear, try:
How do I customize my own 404 error page for non-existent pages?
To change the text of the message, try editing the Site.PageNotFound page.