- 'namespace' => 'Only include pages in these namespaces',
- 'type' => "What type of category members to include. Ignored when {$p}sort=timestamp is set",
- 'sort' => 'Property to sort by',
- 'dir' => 'In which direction to sort',
- 'start' => "Timestamp to start listing from. Can only be used with {$p}sort=timestamp",
- 'end' => "Timestamp to end listing at. Can only be used with {$p}sort=timestamp",
- 'startsortkey' => "Sortkey to start listing from. Must be given in " .
- "binary format. Can only be used with {$p}sort=sortkey",
- 'endsortkey' => "Sortkey to end listing at. Must be given in binary " .
- "format. Can only be used with {$p}sort=sortkey",
- 'startsortkeyprefix' => "Sortkey prefix to start listing from. Can " .
- "only be used with {$p}sort=sortkey. Overrides {$p}startsortkey",
- 'endsortkeyprefix' => "Sortkey prefix to end listing BEFORE (not at, " .
- "if this value occurs it will not be included!). Can only be used with " .
- "{$p}sort=sortkey. Overrides {$p}endsortkey",
- 'continue' => 'For large categories, give the value returned from previous query',
- 'limit' => 'The maximum number of pages to return.',