original_string: protected function openReader($filePath)
      {
          $this->zip = new \ZipArchive();
  
          if ($this->zip->open($filePath) === true) {
              $this->sharedStringsHelper = new SharedStringsHelper($filePath, $this->getOptions()->getTempFolder());
  
              if ($this->sharedStringsHelper->hasSharedStrings()) {
                  // Extracts all the strings from the sheets for easy access in the future
                  $this->sharedStringsHelper->extractSharedStrings();
              }
  
              $this->sheetIterator = new SheetIterator($filePath, $this->getOptions(), $this->sharedStringsHelper, $this->globalFunctionsHelper);
          } else {
              throw new IOException("Could not open $filePath for reading.");
          }
      }
code: protected function openReader($filePath)
      {
          $this->zip = new \ZipArchive();
  
          if ($this->zip->open($filePath) === true) {
              $this->sharedStringsHelper = new SharedStringsHelper($filePath, $this->getOptions()->getTempFolder());
  
              if ($this->sharedStringsHelper->hasSharedStrings()) {
                  // Extracts all the strings from the sheets for easy access in the future
                  $this->sharedStringsHelper->extractSharedStrings();
              }
  
              $this->sheetIterator = new SheetIterator($filePath, $this->getOptions(), $this->sharedStringsHelper, $this->globalFunctionsHelper);
          } else {
              throw new IOException("Could not open $filePath for reading.");
          }
      }
code_tokens: protected function openReader ( $ filePath ) { $ this -> zip = new \ ZipArchive ( ) ; if ( $ this -> zip -> open ( $ filePath ) === true ) { $ this -> sharedStringsHelper = new SharedStringsHelper ( $ filePath , $ this -> getOptions ( ) -> getTempFolder ( ) ) ; if ( $ this -> sharedStringsHelper -> hasSharedStrings ( ) ) { // Extracts all the strings from the sheets for easy access in the future $ this -> sharedStringsHelper -> extractSharedStrings ( ) ; } $ this -> sheetIterator = new SheetIterator ( $ filePath , $ this -> getOptions ( ) , $ this -> sharedStringsHelper , $ this -> globalFunctionsHelper ) ; } else { throw new IOException ( "Could not open $filePath for reading." ) ; } }
docstring: Opens the file at the given file path to make it ready to be read.
  It also parses the sharedStrings.xml file to get all the shared strings available in memory
  and fetches all the available sheets.
  
  @param  string $filePath Path of the file to be read
  @return void
  @throws \Box\Spout\Common\Exception\IOException If the file at the given path or its content cannot be read
  @throws \Box\Spout\Reader\Exception\NoSheetsFoundException If there are no sheets in the file
docstring_tokens: Opens the file at the given file path to make it ready to be read . It also parses the sharedStrings . xml file to get all the shared strings available in memory and fetches all the available sheets .