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<?php |
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namespace Box\Spout\Reader\XLSX; |
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use Box\Spout\Reader\Exception\NoSheetsFoundException; |
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use Box\Spout\Reader\IteratorInterface; |
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use Box\Spout\Reader\XLSX\Manager\SheetManager; |
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/** |
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* Class SheetIterator |
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* Iterate over XLSX sheet. |
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*/ |
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class SheetIterator implements IteratorInterface |
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{ |
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/** @var \Box\Spout\Reader\XLSX\Sheet[] The list of sheet present in the file */ |
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protected $sheets; |
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/** @var int The index of the sheet being read (zero-based) */ |
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protected $currentSheetIndex; |
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/** |
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* @param SheetManager $sheetManager Manages sheets |
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* @throws \Box\Spout\Reader\Exception\NoSheetsFoundException If there are no sheets in the file |
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*/ |
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public function __construct($sheetManager) |
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{ |
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// Fetch all available sheets |
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$this->sheets = $sheetManager->getSheets(); |
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if (\count($this->sheets) === 0) { |
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throw new NoSheetsFoundException('The file must contain at least one sheet.'); |
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} |
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} |
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/** |
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* Rewind the Iterator to the first element |
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* @see http://php.net/manual/en/iterator.rewind.php |
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* |
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* @return void |
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*/ |
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public function rewind() |
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{ |
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$this->currentSheetIndex = 0; |
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} |
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/** |
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* Checks if current position is valid |
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* @see http://php.net/manual/en/iterator.valid.php |
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* |
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* @return bool |
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*/ |
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public function valid() |
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{ |
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return ($this->currentSheetIndex < \count($this->sheets)); |
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} |
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/** |
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* Move forward to next element |
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* @see http://php.net/manual/en/iterator.next.php |
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* |
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* @return void |
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*/ |
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public function next() |
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{ |
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// Using isset here because it is way faster than array_key_exists... |
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if (isset($this->sheets[$this->currentSheetIndex])) { |
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$currentSheet = $this->sheets[$this->currentSheetIndex]; |
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$currentSheet->getRowIterator()->end(); |
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$this->currentSheetIndex++; |
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} |
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} |
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/** |
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* Return the current element |
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* @see http://php.net/manual/en/iterator.current.php |
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* |
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* @return \Box\Spout\Reader\XLSX\Sheet |
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*/ |
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public function current() |
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{ |
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return $this->sheets[$this->currentSheetIndex]; |
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} |
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/** |
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* Return the key of the current element |
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* @see http://php.net/manual/en/iterator.key.php |
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* |
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* @return int |
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*/ |
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public function key() |
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{ |
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return $this->currentSheetIndex + 1; |
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} |
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/** |
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* Cleans up what was created to iterate over the object. |
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* |
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* @return void |
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*/ |
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public function end() |
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{ |
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// make sure we are not leaking memory in case the iteration stopped before the end |
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foreach ($this->sheets as $sheet) { |
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$sheet->getRowIterator()->end(); |
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} |
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} |
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} |
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box /
spout
