bookList = $bookList; } /** * Return the current book * @link http://php.net/manual/en/iterator.current.php * @return Book Can return any type. */ public function current() { return $this->bookList->getBook($this->currentBook); } /** * (PHP 5 >= 5.0.0)
* Move forward to next element * @link http://php.net/manual/en/iterator.next.php * @return void Any returned value is ignored. */ public function next() { $this->currentBook++; } /** * (PHP 5 >= 5.0.0)
* Return the key of the current element * @link http://php.net/manual/en/iterator.key.php * @return mixed scalar on success, or null on failure. */ public function key() { return $this->currentBook; } /** * (PHP 5 >= 5.0.0)
* Checks if current position is valid * @link http://php.net/manual/en/iterator.valid.php * @return boolean The return value will be casted to boolean and then evaluated. * Returns true on success or false on failure. */ public function valid() { return $this->currentBook < $this->bookList->count(); } /** * (PHP 5 >= 5.0.0)
* Rewind the Iterator to the first element * @link http://php.net/manual/en/iterator.rewind.php * @return void Any returned value is ignored. */ public function rewind() { $this->currentBook = 0; } }