$EnableLinkPageRelative When enabled, causes PmWiki to use relative urls for page links instead of absolute urls.  $EnableLinkPageRelative = 1;

$PagePathFmt This array lists the order in which PmWiki looks for the page that you most likely are attempting to link to. The default is listed below. Look at Cookbook:PagePaths for some ideas.  array('{$Group}.$1','$1.$1'.'$1.{$DefaultName}')  $LinkPageExistsFmt
The (HTML) string to output for links to already existing wiki pages. Defaults to
        <a class='wikilink' href='\$LinkUrl'>\$LinkText</a>

$LinkPageCreateFmt The (HTML) string to output for links to non-existent wiki pages. The default is to add a '?' after the link text with a link to the page edit/create form. Defaults to  <a class='createlinktext' href='\$PageUrl?action=edit'>\$LinkText</a> <a class='createlink' href='\$PageUrl?action=edit'>?</a>

$LinkPageCreateSpaceFmt Same as $LinkPageCreateFmt, but used when the link text has a space in it.
$LinkPageSelfFmt The (HTML) string to output for self-referencing links (i.e. links to the page itself). Defaults to  <a class='selflink' href='\$LinkUrl'>\$LinkText</a>  $UrlLinkFmt
The (HTML) string to output for URL-links that begin with 'http:', 'ftp:', etc. Defaults to
        <a class='urllink' href='\$LinkUrl' rel='nofollow'>\$LinkText</a>

$IMapLinkFmt an array of link formats for various link "schemes". Not set as default. Examples of custom formats to allow different styling via classes: Links to http: standard url links:  $IMapLinkFmt['http:'] = "<a class='httplink urllink' href='\$LinkUrl'>\$LinkText</a>";

         $IMapLinkFmt['https:'] = "<a class='httpslink urllink' href='\$LinkUrl'>\$LinkText</a>";  Links to PmWiki: InterMap shortcut:  $IMapLinkFmt['PmWiki:'] = "<a class='pmwikilink urllink' href='\$LinkUrl'>\$LinkText</a>";

$InterMapFiles An array consisting a list of files and pages containing InterMap entries to be loaded (see CustomInterMap). $MakePageNameFunction
Name of a custom function to replace MakePageName(), which converts strings into valid page names.
$MakePageNamePatterns $MakePageNamePatterns is an array of regular expression replacements that is used to map the page link in a free link such as [[free link]] into a page name. Currently the default sequence is:
    "/'/" => '',                           # strip single-quotes
"/[^$PageNameChars]+/" => ' ', # convert non-alnums to spaces "/((^|[^-\\w])\\w)/e" => "strtoupper('$1')",               # initial caps after spaces
"/ /" => ''                            # strip spaces

Note that if you change $MakePageNamePatterns, the documentation links may break. This can be fixed by re-setting $MakePageNamePatterns to the default in local/PmWiki.php.
$WikiWordCountMax The maximum number of times to convert each WikiWord encountered on a page. Defaults to 1,000,000. Common settings for this variable are zero (disable WikiWord links) and one (convert only the first occurrence of each WikiWord).  $WikiWordCountMax = 0;     # disable WikiWord links
$WikiWordCountMax = 1; # convert only first WikiWord  $WikiWordCount
An array that allows the number of WikiWord conversions to be set on a per-WikiWord basis. The default is to use $WikiWordCountMax unless a value is set in this array. By default PmWiki sets $WikiWordCount['PmWiki']=1 to limit the number of conversions of "PmWiki".
        $WikiWordCount['PhD']=0; # Don't convert "PhD" $WikiWordCount['WikiWord']=5;  # Convert WikiWord 5 times
# the following lines keep a page from linking to itself
$title = FmtPageName('$Title_',$pagename); $WikiWordCount[$title]=0;  $EnableRedirectQuiet
Enable the quiet=1 parameter for the redirect directive. On publicly edited wikis it is advisable not to enable quiet redirects.
        $EnableRedirectQuiet = 0; # disable quiet redirects (default) $EnableRedirectQuiet = 1;     # enable quiet redirects