cXML Version 2.0.0 (PHP 8.2+)

[ynnoig]

Upgrade and Refactor Library

This pull request includes a comprehensive upgrade and refactor of the library. The key changes are as follows:

• Breaking Change: The library now requires PHP 8.2+.
• Migration: Refactored from PHP annotations to PHP attributes.
• Refactor:
  • Applied Rector and PHPStan for improved code quality and stricter type declarations.
  • Promoted class properties and applied the readonly modifier where applicable.
  • Removed unused doctrine/annotations and applied strict rules in php-cs.
  • Upgraded to jms/serializer 3.30.
• CI Updates: Removed support for old PHP versions in CI configurations.
• Style and Code Quality: Applied various code style fixes and quality improvements using Rector and php-cs-fixer.

Changelog for possible v2.0.0

Breaking Changes

• Dropped support for PHP versions below 8.2.
• Migrated from PHP annotations to PHP attributes.

Features

• Upgraded jms/serializer to version 3.30.

Refactoring and Improvements

• Applied Rector for code quality improvements:
  • InstanceOf optimization.
  • Privatization and early return.
  • Dead code elimination.
  • Type declarations.
  • Boolean strictness.
• Promoted class properties and applied readonly modifier for classes, properties, and constants.
• Removed unnecessary doctrine/annotations.
• Applied PHPStan strict rules and various strict rules in php-cs.
• Renamed Ser to Serializer.

CI Updates

• Removed old PHP versions from CI configurations.

Style and Code Quality

• Ran php-cs-fixer for consistent code style.
• Various code style fixes and improvements.

Additional Note for Users of Older PHP Versions

If you are using a PHP version older than 8.2, please use the 1.x version of this library. The 2.x version introduces changes that require PHP 8.2 or newer.

To continue using the library with older PHP versions, you can specify the 1.x version in your composer.json:

{
    "require": {
        "friendsofcxml/cxml-php": "^1.0"
    }
}

[ynnoig]

@mathielen did u had some time to review this PR?

[mathielen]

Not really :( But if you guys had I'm happy to just release it. I will upgrade my projects successively after that.