1This is an extension that aims to implement some efficient data access 2interfaces and classes. You'll find the classes documented using php 3code in the file spl.php or in the corresponding .inc file in the examples 4subdirectory. Based on the internal implementations or the files in the 5examples subdirectory there are also some .php files to experiment with. 6 7For more information look at: http://php.net/manual/en/book.spl.php 8