<?php
namespace PhpOffice\PhpSpreadsheet\Worksheet;
< use PhpOffice\PhpSpreadsheet\Exception as PhpSpreadsheetException;
> use Iterator;
< abstract class CellIterator implements \Iterator
> 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);
> $this->worksheet = null;
}
/**
* 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 $value
< *
< * @throws PhpSpreadsheetException
*/
< public function setIterateOnlyExistingCells($value)
> public function setIterateOnlyExistingCells($value): void
{
$this->onlyExistingCells = (bool) $value;
$this->adjustForExistingOnlyRange();
}
}