Require PHP 7 fails on HHVM

[ghost]

Hello,

when I require PHP >=7.0 in my composer.json composer install fails on Travis CI with HHVM (3.11.0, so PHP 7 is supported). Everything's working fine with PHP 5.x.
This is the error message:

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - This package requires php >=7.0 but your HHVM version does not satisfy that requirement.

Is there any way to require a PHP or HHVM version via Composer? Or do I have to give up on the require-statement / use --ignore-platform-reqs?

[curry684]

HHVM is definitely not fully compatible with PHP7 yet, so I'm afraid there's not much we can do.

I don't have HHVM machines at my disposal, but what does it even report for PHP_VERSION, or in c show -p | grep php?

[Seldaek]

We can't really fix that.. Until they release something that ships a PHP_VERSION indicating they are php7 compatible then they will be treated as incompatible.

[ghost]

Oh, well, I wasn't aware of those issues - thanks for linking them!

I guess I'll just move hhvm to the allow_failures list at Travis and use --ignore-platform-reqs until HHVM's PHP 7 compatible.