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<?php |
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namespace Box\Spout\Reader\XLSX\Helper; |
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use Box\Spout\Reader\Wrapper\XMLReader; |
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use Box\Spout\Reader\XLSX\Sheet; |
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/** |
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* Class SheetHelper |
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* This class provides helper functions related to XLSX sheets |
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* |
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* @package Box\Spout\Reader\XLSX\Helper |
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*/ |
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class SheetHelper |
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{ |
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/** Paths of XML files relative to the XLSX file root */ |
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const WORKBOOK_XML_RELS_FILE_PATH = 'xl/_rels/workbook.xml.rels'; |
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const WORKBOOK_XML_FILE_PATH = 'xl/workbook.xml'; |
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/** @var string Path of the XLSX file being read */ |
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protected $filePath; |
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/** @var \Box\Spout\Reader\XLSX\ReaderOptions Reader's current options */ |
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protected $options; |
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/** @var \Box\Spout\Reader\XLSX\Helper\SharedStringsHelper Helper to work with shared strings */ |
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protected $sharedStringsHelper; |
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/** @var \Box\Spout\Common\Helper\GlobalFunctionsHelper Helper to work with global functions */ |
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protected $globalFunctionsHelper; |
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/** |
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* @param string $filePath Path of the XLSX file being read |
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* @param \Box\Spout\Reader\XLSX\ReaderOptions $options Reader's current options |
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* @param \Box\Spout\Reader\XLSX\Helper\SharedStringsHelper Helper to work with shared strings |
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* @param \Box\Spout\Common\Helper\GlobalFunctionsHelper $globalFunctionsHelper |
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*/ |
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public function __construct($filePath, $options, $sharedStringsHelper, $globalFunctionsHelper) |
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{ |
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$this->filePath = $filePath; |
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$this->options = $options; |
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$this->sharedStringsHelper = $sharedStringsHelper; |
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$this->globalFunctionsHelper = $globalFunctionsHelper; |
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} |
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/** |
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* Returns the sheets metadata of the file located at the previously given file path. |
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* The paths to the sheets' data are read from the [Content_Types].xml file. |
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* |
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* @return Sheet[] Sheets within the XLSX file |
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*/ |
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public function getSheets() |
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{ |
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$sheets = []; |
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$sheetIndex = 0; |
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$xmlReader = new XMLReader(); |
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if ($xmlReader->openFileInZip($this->filePath, self::WORKBOOK_XML_FILE_PATH)) { |
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while ($xmlReader->read()) { |
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if ($xmlReader->isPositionedOnStartingNode('sheet')) { |
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$sheets[] = $this->getSheetFromSheetXMLNode($xmlReader, $sheetIndex); |
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$sheetIndex++; |
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} else if ($xmlReader->isPositionedOnEndingNode('sheets')) { |
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// stop reading once all sheets have been read |
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break; |
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} |
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} |
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$xmlReader->close(); |
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} |
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return $sheets; |
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} |
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/** |
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* Get active sheet index |
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* |
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* @return int index of active sheet |
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*/ |
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public function getActiveSheetIndex() |
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{ |
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$activeSheetIndex = 0; |
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$xmlReader = new XMLReader(); |
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if ($xmlReader->openFileInZip($this->filePath, self::WORKBOOK_XML_FILE_PATH)) { |
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while ($xmlReader->read()) { |
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if ($xmlReader->isPositionedOnStartingNode('workbookView')) { |
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$activeSheetIndex = (int) $xmlReader->getAttribute('activeTab'); |
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} |
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} |
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$xmlReader->close(); |
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} |
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return $activeSheetIndex; |
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} |
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/** |
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* Returns an instance of a sheet, given the XML node describing the sheet - from "workbook.xml". |
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* We can find the XML file path describing the sheet inside "workbook.xml.res", by mapping with the sheet ID |
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* ("r:id" in "workbook.xml", "Id" in "workbook.xml.res"). |
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* |
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* @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReaderOnSheetNode XML Reader instance, pointing on the node describing the sheet, as defined in "workbook.xml" |
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* @param int $sheetIndexZeroBased Index of the sheet, based on order of appearance in the workbook (zero-based) |
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* @return \Box\Spout\Reader\XLSX\Sheet Sheet instance |
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*/ |
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protected function getSheetFromSheetXMLNode($xmlReaderOnSheetNode, $sheetIndexZeroBased) |
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{ |
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$sheetId = $xmlReaderOnSheetNode->getAttribute('r:id'); |
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$escapedSheetName = $xmlReaderOnSheetNode->getAttribute('name'); |
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/** @noinspection PhpUnnecessaryFullyQualifiedNameInspection */ |
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$escaper = \Box\Spout\Common\Escaper\XLSX::getInstance(); |
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$sheetName = $escaper->unescape($escapedSheetName); |
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$sheetDataXMLFilePath = $this->getSheetDataXMLFilePathForSheetId($sheetId); |
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return new Sheet($this->filePath, $sheetDataXMLFilePath, $sheetIndexZeroBased, $sheetName, $this->options, $this->sharedStringsHelper); |
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} |
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/** |
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* @param string $sheetId The sheet ID, as defined in "workbook.xml" |
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* @return string The XML file path describing the sheet inside "workbook.xml.res", for the given sheet ID |
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*/ |
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protected function getSheetDataXMLFilePathForSheetId($sheetId) |
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{ |
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$sheetDataXMLFilePath = ''; |
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// find the file path of the sheet, by looking at the "workbook.xml.res" file |
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$xmlReader = new XMLReader(); |
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if ($xmlReader->openFileInZip($this->filePath, self::WORKBOOK_XML_RELS_FILE_PATH)) { |
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while ($xmlReader->read()) { |
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if ($xmlReader->isPositionedOnStartingNode('Relationship')) { |
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$relationshipSheetId = $xmlReader->getAttribute('Id'); |
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if ($relationshipSheetId === $sheetId) { |
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// In workbook.xml.rels, it is only "worksheets/sheet1.xml" |
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// In [Content_Types].xml, the path is "/xl/worksheets/sheet1.xml" |
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$sheetDataXMLFilePath = $xmlReader->getAttribute('Target'); |
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// sometimes, the sheet data file path already contains "/xl/"... |
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if (strpos($sheetDataXMLFilePath, '/xl/') !== 0) { |
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$sheetDataXMLFilePath = '/xl/' . $sheetDataXMLFilePath; |
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break; |
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} |
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} |
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} |
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} |
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$xmlReader->close(); |
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} |
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return $sheetDataXMLFilePath; |
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} |
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} |
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box /
spout
