/**
* Returns the shared strings unique count, as specified in <sst> tag.
*
* @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader instance
* @return int|null Number of unique shared strings in the sharedStrings.xml file
* @throws \Box\Spout\Common\Exception\IOException If sharedStrings.xml is invalid and can't be read
*/
protected function getSharedStringsUniqueCount($xmlReader)
{
$xmlReader->next('sst');
// Iterate over the "sst" elements to get the actual "sst ELEMENT" (skips any DOCTYPE)
while ($xmlReader->name === 'sst' && $xmlReader->nodeType !== XMLReader::ELEMENT) {
$xmlReader->read();
}
$uniqueCount = $xmlReader->getAttribute('uniqueCount');
// some software do not add the "uniqueCount" attribute but only use the "count" one
// @see https://github.com/box/spout/issues/254
if ($uniqueCount === null) {
$uniqueCount = $xmlReader->getAttribute('count');
}
return $uniqueCount !== null ? intval($uniqueCount) : null;
}
/**
* Returns the shared strings unique count, as specified in <sst> tag.
*
* @param \Box\Spout\Reader\Wrapper\XMLReader $xmlReader XMLReader instance
* @return int Number of unique shared strings in the sharedStrings.xml file
* @throws \Box\Spout\Common\Exception\IOException If sharedStrings.xml is invalid and can't be read
*/
protected function getSharedStringsUniqueCount($xmlReader)
{
$xmlReader->next('sst');
// Iterate over the "sst" elements to get the actual "sst ELEMENT" (skips any DOCTYPE)
while ($xmlReader->name === 'sst' && $xmlReader->nodeType !== XMLReader::ELEMENT) {
$xmlReader->read();
}
return intval($xmlReader->getAttribute('uniqueCount'));
}
