|-.\.
|-.\..
|-.\.unwanted
| |-.\.unwanted\.
| \-.\.unwanted\..
|-.\01-closure.php
|-.\02-iterator.php
|-.\03-iteratorAggregate.php
|-.\04-arrayAccess.php
|-.\05-1-serialize.php
|-.\05-2-serialize+.php
|-.\06-generator.php
|-.\07-arrayIterator.php
|-.\08-recursiveArrayIterator.php
|-.\09-filterIterator.php
|-.\10-limitIterator.php
|-.\11-infiniteIterator.php
|-.\12-splFileObject.php
|-.\13-1-directoryIterator.php
|-.\13-2-RecursiveDirectoryIterator.php
|-.\13-3-RecursiveTree.php
|-.\13-4-GlobIterator.php
|-.\14-objectStorage.php
|-.\15-Stack.php
|-.\16-Queue.php
|-.\17-priorityQueue.php
|-.\18-Heap.php
|-.\19-fixedArray.php
|-.\data.csv
|-.\data.txt
\-.\users.db