public function spans()
    {
        // each span returned from opencensus_trace_list should be a
        // OpenCensus\Span object
        $traceId = $this->spanContext()->traceId();
        return array_map(function ($span) use ($traceId) {
            return $this->mapSpan($span, $traceId);
        }, opencensus_trace_list());
    }
public function spans()
    {
        // each span returned from opencensus_trace_list should be a
        // OpenCensus\Span object
        $traceId = $this->spanContext()->traceId();
        return array_map(function ($span) use ($traceId) {
            return $this->mapSpan($span, $traceId);
        }, opencensus_trace_list());
    }
public function spans ( ) { // each span returned from opencensus_trace_list should be a // OpenCensus\Span object $ traceId = $ this -> spanContext ( ) -> traceId ( ) ; return array_map ( function ( $ span ) use ( $ traceId ) { return $ this -> mapSpan ( $ span , $ traceId ) ; } , opencensus_trace_list ( ) ) ; }
Return the spans collected.

@return Span[]
Return the spans collected .