Spans array on Tracer

[zaguerinho]

For some reason, I need access to the spans array in the Tracer object, any chance of making the spans property public, or creating a getter function? any aversions on these request?

[jcchavezs]

You can use the InMemory reporter from zipkin-php: https://github.com/jcchavezs/zipkin-php/blob/master/src/Zipkin/Reporters/InMemory.php