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Long Term Support Release

  • Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
  • Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
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/lib/spout/src/Spout/Reader/XLSX/Manager/ -> SharedStringsManager.php (source)

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Differences Between: [Versions 310 and 401] [Versions 39 and 401]

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Defines 1 class

SharedStringsManager:: (10 methods):
  __construct()
  hasSharedStrings()
  extractSharedStrings()
  getSharedStringsUniqueCount()
  getBestSharedStringsCachingStrategy()
  processSharedStringsItem()
  shouldExtractTextNodeValue()
  shouldPreserveWhitespace()
  getStringAtIndex()
  cleanup()


Class: SharedStringsManager  - X-Ref

Class SharedStringsManager
This class manages the shared strings defined in the associated XML file

__construct($filePath,$tempFolder,$workbookRelationshipsManager,$entityFactory,$helperFactory,$cachingStrategyFactory)   X-Ref

param: string $filePath Path of the XLSX file being read
param: string $tempFolder Temporary folder where the temporary files to store shared strings will be stored
param: WorkbookRelationshipsManager $workbookRelationshipsManager Helps retrieving workbook relationships
param: InternalEntityFactory $entityFactory Factory to create entities
param: HelperFactory $helperFactory Factory to create helpers
param: CachingStrategyFactory $cachingStrategyFactory Factory to create shared strings caching strategies

hasSharedStrings()   X-Ref
Returns whether the XLSX file contains a shared strings XML file

return: bool

extractSharedStrings()   X-Ref
Builds an in-memory array containing all the shared strings of the sheet.
All the strings are stored in a XML file, located at 'xl/sharedStrings.xml'.
It is then accessed by the sheet data, via the string index in the built table.

More documentation available here: http://msdn.microsoft.com/en-us/library/office/gg278314.aspx

The XML file can be really big with sheets containing a lot of data. That is why
we need to use a XML reader that provides streaming like the XMLReader library.

return: void

getSharedStringsUniqueCount($xmlReader)   X-Ref
Returns the shared strings unique count, as specified in <sst> tag.

param: \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader instance
return: int|null Number of unique shared strings in the sharedStrings.xml file

getBestSharedStringsCachingStrategy($sharedStringsUniqueCount)   X-Ref
Returns the best shared strings caching strategy.

param: int|null $sharedStringsUniqueCount Number of unique shared strings (NULL if unknown)
return: CachingStrategyInterface

processSharedStringsItem($xmlReader, $sharedStringIndex)   X-Ref
Processes the shared strings item XML node which the given XML reader is positioned on.

param: \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XML Reader positioned on a "<si>" node
param: int $sharedStringIndex Index of the processed shared strings item
return: void

shouldExtractTextNodeValue($textNode)   X-Ref
Not all text nodes' values must be extracted.
Some text nodes are part of a node describing the pronunciation for instance.
We'll only consider the nodes whose parents are "<si>" or "<r>".

param: \DOMElement $textNode Text node to check
return: bool Whether the given text node's value must be extracted

shouldPreserveWhitespace($textNode)   X-Ref
If the text node has the attribute 'xml:space="preserve"', then preserve whitespace.

param: \DOMElement $textNode The text node element (<t>) whose whitespace may be preserved
return: bool Whether whitespace should be preserved

getStringAtIndex($sharedStringIndex)   X-Ref
Returns the shared string at the given index, using the previously chosen caching strategy.

param: int $sharedStringIndex Index of the shared string in the sharedStrings.xml file
return: string The shared string at the given index

cleanup()   X-Ref
Destroys the cache, freeing memory and removing any created artifacts

return: void