Missing upper constraint for PHP version

[mathbr]

Currently the composer.json contains this:

    "require": {
        "php": ">=7"
    },

This promises that this library is compatible to any future PHP version (e.g. 8, 9, etc.) for all eternity.

Realistically speaking this is impossible thus this should be changed:

    "require": {
        "php": "^7.0"
    },

[kelunik]

No, it shouldn't be changed. PHP doesn't follow semver and restricting the runtime upper bound is nonsense.

[mathbr]

Well then, looking forward to using this library with PHP in a few years. ;-)

[bwoebi]

If you restrict this at all, the restriction would need to be >=7.0, <7.3, because PHP has several BC breaks every minor version, which all could cause a break of this library.

Also, one can't just pull a new php version via composer. Composer can always pull an older version of a library dependency though.

It's the responsibility of the run-time to be as forward compatible and as less breaking as possible, between every version.

[mathbr]

@bwoebi You are absolutely right, i should have phrased it like that. This way it becomes clear what PHP versions this library has been tested against and is guaranteed to work with.

[kelunik]

@mathbr Sorry for being a bit harsh. We would maybe decide differently if PHP was pulled via Composer, but with the current way of working, >=7 is the better choice IMO.

[mathbr]

@kelunik No worries, I'm not offended. ;-) You are the maintainer, thus it's your choice.