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<?php
namespace PhpOffice\PhpSpreadsheet\Worksheet;
use PhpOffice\PhpSpreadsheet\Exception as PhpSpreadsheetException;
abstract class CellIterator implements \Iterator
{
/**
* Worksheet to iterate.
*
* @var Worksheet
*/
protected $worksheet;
* Iterate only existing cells.
* @var bool
protected $onlyExistingCells = false;
* Destructor.
public function __destruct()
unset($this->worksheet);
}
* Get loop only existing cells.
* @return bool
public function getIterateOnlyExistingCells()
return $this->onlyExistingCells;
* Validate start/end values for "IterateOnlyExistingCells" mode, and adjust if necessary.
* @throws PhpSpreadsheetException
abstract protected function adjustForExistingOnlyRange();
* Set the iterator to loop only existing cells.
* @param bool $value
public function setIterateOnlyExistingCells($value)
$this->onlyExistingCells = (bool) $value;
$this->adjustForExistingOnlyRange();