Flow PHP

Propagator

extract() : PropagationContext: Extract context from a carrier.
fields() : array<string|int, string>: Get the list of header/field names this propagator uses.
inject() : void: Inject context into a carrier.

Extract context from a carrier.


    public
                    extract(Carrier<string|int, mixed> $carrier) : PropagationContext

PropagationContext —

The extracted context

Get the list of header/field names this propagator uses.


    public
                    fields() : array<string|int, string>

This is useful for CORS configuration and carrier filtering.

array<string|int, string> —

List of field names

Inject context into a carrier.


    public
                    inject(PropagationContext $context, Carrier<string|int, mixed> $carrier) : void