Uuid7EventIdGenerator

Rasuvaeff\Yii3AbTesting\Uuid7EventIdGenerator

Class · rasuvaeff/yii3-ab-testing · Source · implements EventIdGenerator

Default generator: UUIDv7 as specified by RFC 9562, with no dependency beyond the core so composer require alone yields a working package.

Layout: 48-bit big-endian Unix timestamp in milliseconds, 4-bit version 0111, 12 bits of randomness, 2-bit variant 10, 62 bits of randomness. The leading timestamp makes identifiers sort by creation time, which is why this format is the default — it doubles as a useful sort prefix in analytics storage.

Ordering holds between milliseconds. Two identifiers minted within the same millisecond have no defined order: RFC 9562's monotonic counter would require per-process state that gives no guarantee across PHP-FPM workers anyway, so it is deliberately not implemented. Nothing in the pipeline depends on intra-millisecond ordering.

To use a library implementation instead, inject SymfonyUidEventIdGenerator or RamseyUuidEventIdGenerator.

Constructor

new Uuid7EventIdGenerator(Psr\Clock\ClockInterface $clock = new SystemClock())

Methods

generate()

generate(): string