Effect

One entry in a request’s effect ledger: a single observed side effect (a query, an HTTP call, a cache read, …), recorded in the order it happened.

$fingerprint is what LedgerMatcher matches a replayed call against first — normalized SQL plus a hash of bound parameters for a database call, method+URI+body-hash for HTTP, the key for a cache read — falling back to $seq position within the same EffectKind when no fingerprint matches. $call carries whatever a given recorder needs to describe the call beyond the fingerprint (e.g. the raw SQL and bound parameters), and $result the value playback answers with on a match.

Synopsis

final readonly class Effect

Source	Cassette/Effect.php

Properties

Property	Type	Description
$call	array	readonly.
$durationMicros	?``int	readonly.
$fingerprint	string	readonly.
$kind	EffectKind	readonly.
$result	mixed	readonly.
$seq	int	readonly.

Constructor

__construct()

public function __construct(non-negative-int $seq, EffectKind $kind, string $fingerprint, array<string, mixed> $call, mixed $result, non-negative-int|null $durationMicros = null): mixed

Wall time the real call took, when known.

Parameter	Type	Description
$seq	non-negative-int	Position in the ledger, in recorded order.
$kind	EffectKind
$fingerprint	string
$call	array``<``string``, ``mixed``>	Recorder-specific description of the call.
$result	mixed
$durationMicros	`non-negative-int“	“null`

Returns mixed