php-standard-library/either

General-purpose disjoint union type (Left/Right) for values with two possible types

6.0.3 2026-03-17 22:50 UTC

Requires

• php: ~8.4.0 || ~8.5.0
• php-standard-library/comparison: ^6.0
• php-standard-library/foundation: ^6.0
• php-standard-library/option: ^6.0
• php-standard-library/result: ^6.0

Requires (Dev)

• php-standard-library/str: ^6.0
• phpunit/phpunit: ^13.0

Conflicts

• azjezz/psl: *

MIT

• Seifeddine Gmati
• Contributors

• monad
• either
• union-type

README

General-purpose disjoint union type (Left/Right) for values with two possible types.

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