Generating an ASCII graphic tree with RecursiveTreeIterator

- The RecursiveTreeIterator class simply…iterates over another recursive iterator…to generate an ASCII graphic tree…of the elements it contains.…This is recursivetree.php, which you can find…in the chapter six folder of the exercise files.…It contains an instance of recursive directory…iterator that traverses the common directory,…and its sub-directories.…To create a graphic tree, just chain…RecursiveTreeIterator and then create…a loop to display the values.…

There's no need to use the RecursiveIterator…iterator because RecursiveTreeIterator…does is all for you.…So let's create that here.…Files new RecursiveTreeIterator, and we pass it…a RecursiveIterator which is called files,…and then we just loop over it, foreach files as file,…and then inside that loop we echo file…and have a line break.…Our base iterator is RecursiveDirectoryIterator,…so inside this loop, file will be the relative path…to each file.…

So we just save that and then load it into a browser,…and that creates the graphic tree with all…of the default prefixes.…