_subject = $subject; $this->resetEnd($endRow); $this->resetStart($startRow); } /** * Destructor */ public function __destruct() { unset($this->_subject); } /** * (Re)Set the start row and the current row pointer * * @param integer $startRow The row number at which to start iterating */ public function resetStart($startRow = 1) { $this->_startRow = $startRow; $this->seek($startRow); return $this; } /** * (Re)Set the end row * * @param integer $endRow The row number at which to stop iterating */ public function resetEnd($endRow = null) { $this->_endRow = ($endRow) ? $endRow : $this->_subject->getHighestRow(); return $this; } /** * Set the row pointer to the selected row * * @param integer $row The row number to set the current pointer at */ public function seek($row = 1) { if (($row < $this->_startRow) || ($row > $this->_endRow)) { throw new PHPExcel_Exception("Row $row is out of range ({$this->_startRow} - {$this->_endRow})"); } $this->_position = $row; } /** * Rewind the iterator to the starting row */ public function rewind() { $this->_position = $this->_startRow; } /** * Return the current row in this worksheet * * @return PHPExcel_Worksheet_Row */ public function current() { return new PHPExcel_Worksheet_Row($this->_subject, $this->_position); } /** * Return the current iterator key * * @return int */ public function key() { return $this->_position; } /** * Set the iterator to its next value */ public function next() { ++$this->_position; } /** * Set the iterator to its previous value */ public function prev() { if ($this->_position <= $this->_startRow) { throw new PHPExcel_Exception("Row is already at the beginning of range ({$this->_startRow} - {$this->_endRow})"); } --$this->_position; } /** * Indicate if more rows exist in the worksheet range of rows that we're iterating * * @return boolean */ public function valid() { return $this->_position <= $this->_endRow; } }