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