PHP 8 compatibility

[Glancu]

No description provided.

[garak]

We need to get passing tests on php 8 in order to require it.
So, you we should remove "nightly" from "allow_failures" in travis configuration.

[garak]

As you can see in travis logs, this is currently not working.
We need 2 additional steps:

1. prophecy php 8 support (see related issue)
2. allowing latest prophecy version (only after point 1 is solved)

[derrabus]

As you can see in travis logs, this is currently not working.

If you want to to wait for external projects to adjust their php constraints, you could temporarily add the following line to the nightly run:

composer config platform.php 7.4.99

This is how Symfony currently runs the tests on php 8.

[Glancu]

As you can see in travis logs, this is currently not working.

If you want to to wait for external projects to adjust their php constraints, you could temporarily add the following line to the nightly run:

composer config platform.php 7.4.99

This is how Symfony currently runs the tests on php 8.

I added commit with script platform, but changes in PR not detected. Do you know why?
https://github.com/Glancu/KnpMenu/commit/23025d3fbf6582790281c2c47a8d3867f1dff0c1

[derrabus]

The php 8 build is deep red now because PHPUnit 8.3 (installed by PhpUnitBridge) is incompatible with php 8. Symfony is struggling with the same issue at the moment, see symfony/symfony#37564.

We might be able to fix this by dropping PhpUnitBridge and install PHPUnit 9.3-dev for the nightly run. 🤔

[stof]

We might be able to fix this by dropping PhpUnitBridge and install PHPUnit 9.3-dev for the nightly run.

Or forcing the PHPUnit version installed by the bridge in the PHP 8 job for now.

[derrabus]

Or forcing the PHPUnit version installed by the bridge in the PHP 8 job for now.

PHPUnit 9.3 breaks the bridge atm, I'm afraid.