function PropagationGetterInterface::keys

Returns the list of all the keys in the carrier.

Return value

list<string>

See also

https://github.com/open-telemetry/opentelemetry-specification/blob/v1.6…

2 methods override PropagationGetterInterface::keys()

ArrayAccessGetterSetter::keys in vendor/open-telemetry/context/Propagation/ArrayAccessGetterSetter.php: Returns the list of all the keys in the carrier.
SanitizeCombinedHeadersPropagationGetter::keys in vendor/open-telemetry/context/Propagation/SanitizeCombinedHeadersPropagationGetter.php: Returns the list of all the keys in the carrier.

File

vendor/open-telemetry/context/Propagation/PropagationGetterInterface.php, line 19

Class

PropagationGetterInterface

Namespace

OpenTelemetry\Context\Propagation

Code

public function keys($carrier) : array;