<?php namespace Box\Spout\Reader; /** * Interface ReaderInterface */ interface ReaderInterface { /** * Prepares the reader to read the given file. It also makes sure * that the file exists and is readable. * * @param string $filePath Path of the file to be read * @throws \Box\Spout\Common\Exception\IOException * @return void */ public function open($filePath); /** * Returns an iterator to iterate over sheets. * * @throws \Box\Spout\Reader\Exception\ReaderNotOpenedException If called before opening the reader * @return \Iterator To iterate over sheets */ public function getSheetIterator(); /** * Closes the reader, preventing any additional reading * * @return void */ public function close(); }