Drop support for PHP 7.4

[garak]

This is:

• a bug report
• a feature request
• not a usage question (ask them on https://stackoverflow.com/questions/tagged/phpspreadsheet or https://gitter.im/PHPOffice/PhpSpreadsheet)

As stated in the README, this project supports PHP 7.4 until 28th June 2023.
So, the minimum supported PHP version should be raised to 8.0

[MarkBaker]

And it will be.
The LTS doesn't necessarily mean that we do it immediately on the date, just that the next release after that date will no longer support the dropped version.

[garak]

I see.
So I guess you can keep this issue open as a reminder.

[mhcwebdesign]

And it will be. The LTS doesn't necessarily mean that we do it immediately on the date, just that the next release after that date will no longer support the dropped version.

And that case, can you please re-add support for PHP 8.0 (see #3684)? It used to support PHP 8.0 in previous releases just fine, e.g. 1.25.2 . Or update the docs.

Anyway, thanks for all the hard work that has gone into the PhpSpreadsheet project, it is very useful.

[oleibman]

Php 8.0 is fully supported. For the issue to which you link, it seems you are running Php8.0 with Zipstream v3, which does not support 8.0; however, PhpSpreadsheet supports Zipstream V2 and V3. See #3615 (comment) for a means to clear your problem.