PhpSpreadsheet introduced a breaking change in 1.13.0

[alexey-m-ukolov]

They've changed the signature of public function insertNewBefore($pBefore, $pNumCols, $pNumRows, Worksheet $pSheet) by adding return type hint of void.

This projects should add a version restriction for the library:

"require": {
  "phpoffice/phpspreadsheet": ">=1.4 <1.13"
}

Meanwhile problem can be solved by composer require phpoffice/phpspreadsheet:1.12.* in one's own project which will override the broken version.

[alhimik1986]

Hi. I updated the phpspreadsheet to latest (1.13). Nothing broke. Is it really breaks down? The return type void can't break it because the method did not return anything before.

[alexey-m-ukolov]

You probably have notices disabled in your error reporting.

Your class extends the class from phpoffice/phpspreadsheet which has a return type hint, so your class should have it too - so the method signature would be the same.

[alexey-m-ukolov]

Anyway, 1.0.11 fixes it.