Developer
<?php
namespace PhpOffice\PhpSpreadsheet\Worksheet;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
/**
* @implements \Iterator<int, Worksheet>
*/
class Iterator implements \Iterator
{
/**
* Spreadsheet to iterate.
*
* @var Spreadsheet
*/
private $subject;
/**
* Current iterator position.
*
* @var int
*/
private $position = 0;
/**
* Create a new worksheet iterator.
*/
public function __construct(Spreadsheet $subject)
{
// Set subject
$this->subject = $subject;
}
/**
* Rewind iterator.
*/
public function rewind(): void
{
$this->position = 0;
}
/**
* Current Worksheet.
*/
public function current(): Worksheet
{
return $this->subject->getSheet($this->position);
}
/**
* Current key.
*/
public function key(): int
{
return $this->position;
}
/**
* Next value.
*/
public function next(): void
{
++$this->position;
}
/**
* Are there more Worksheet instances available?
*/
public function valid(): bool
{
return $this->position < $this->subject->getSheetCount() && $this->position >= 0;
}
}
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: