Added support for PHP 8.0

[KacerCZ]

• Allow installation on PHP 8.0
• Fixed compatibility with PHP 8.0 namespace handling
• Ignore platform requirements on PHP 8.0 because of incompatible dev dependency
• Updated download URL for phpredis extension
• Fixed warning for phpstan.neon

[KacerCZ]

@Vboss Please take a look if this PR is acceptable for you.

Now it is not possible to install it on PHP 8 with development dependencies (consistence/coding-standard#65).
Dependencies in "require" part are compatible with PHP 8.

[KacerCZ]

@Vboss kindly ping

[martinvenus]

I have made some tests and it works without any problem at my app. I could only suggest to also update README.md ("Kdyby/Redis requires PHP 7.1 to PHP 7.4." => "Kdyby/Redis requires PHP 7.1 to PHP 8.0.").

Thanks. Good job.

[KacerCZ]

@martinvenus Thanks for spotting issue in README.
I'm using this package on PHP 8 without any problems.

I changed PHP constraint to 7.1 or newer in composer.json to eliminate the need for anybody go back when PHP 9 is released.

[martinvenus]

Is there anything I can do for this PR to be merged (and new version release)?

[KacerCZ]

Anything more needs to be done from my side to accept this PR and release new version?

[elcheco]

@Vboss @fprochazka - Is there any active maintainer who could check this PR?

[Spamercz]

Ignore platform requirements on PHP 8.0 because of incompatible dev dependency

What dependecy?

Updated download URL for phpredis extension

You are using development version of redis extension, this may be deal breaker for some companies/hosting policy.

Oh i see they renamed that, in that case this is fine 👍 . Is there release of redis extension with oficial PHP8 support, so I can add that information to release notes?

[KacerCZ]

Ignore platform requirements on PHP 8.0 because of incompatible dev dependency

What dependecy?

Used coding standard is not installable on PHP 8 - see consistence/coding-standard#65

Updated download URL for phpredis extension

You are using development version of redis extension, this may be deal breaker for some companies/hosting policy.

Oh i see they renamed that, in that case this is fine +1 . Is there release of redis extension with oficial PHP8 support, so I can add that information to release notes?

PHP 8 is supported since version 5.3.0 of redis extension.
Source: https://pecl.php.net/package-info.php?package=redis&version=5.3.0

[Spamercz]

Great, coding standard is something that can be resolved later, but is important to know what is failing to install :) . I dont want to give exact timeframe but at our company we have to deal with same problem in comming months so after that hopefully we can fix it here too.

Anyway lets merge this, thank you all :)

[KacerCZ]

@Vboss Thank you for review and publishing new version.