oleibman 5e26de63a9 Handle Empty String in SharedStrings ...

Fix #4063. Fix #1560. Fix #1293. PhpSpreadsheet is not accounting for an empty string in Xlsx sharedStrings.xml.The code which parses it in Reader/Xlsx looks for a `t` or `r` tag descending from `si`, but, in this case, the tag is coded as `<si/>`, with neither t nor r tag descending. An else clause is added to set the string to empty string in this case.

I was surprised that this had not turned up before, and a search through the archives found at least 2 earlier reports from 4 years ago. Those had been marked stale; the stale indicator is removed, and the issues are re-opened, to be closed when this PR is merged.

2024-06-06 06:17:02 -07:00

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