| CustomFilterIterator | CustomFilterIterator filters files by applying anonymous functions. |
| DateRangeFilterIterator | DateRangeFilterIterator filters out files that are not in the given date range (last modified dates). |
| DepthRangeFilterIterator | DepthRangeFilterIterator limits the directory depth. |
| ExcludeDirectoryFilterIterator | ExcludeDirectoryFilterIterator filters out directories. |
| FileTypeFilterIterator | FileTypeFilterIterator only keeps files, directories, or both. |
| FilenameFilterIterator | FilenameFilterIterator filters files by patterns (a regexp, a glob, or a string). |
| RecursiveDirectoryIterator | Extends the \RecursiveDirectoryIterator to support relative paths |
| SizeRangeFilterIterator | SizeRangeFilterIterator filters out files that are not in the given size range. |
| SortableIterator | SortableIterator applies a sort on a given Iterator. |