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CompositeSpanProcessor implements SpanProcessor

Read onlyYes
FinalYes

Forwards spans to multiple processors.

This is useful when you need to:

  • Send spans to multiple backends (e.g., both console and OTLP)
  • Combine batching with memory storage for testing
  • Add custom processing alongside export

Example usage:

$processor = new CompositeSpanProcessor([
    new BatchingSpanProcessor($otlpExporter),
    new MemorySpanProcessor(),
]);

Interfaces

SpanProcessor
Interface for processing spans when they start and end.

Methods

__construct()  : mixed
exporter()  : SpanExporter
Get the exporter used by this processor.
flush()  : bool
Export all pending spans and return success status.
onEnd()  : void
Called when a span ends.
onStart()  : void
Called when a span starts.
processors()  : array<string|int, SpanProcessor>
Get all processors in this composite.

Methods

flush()

Export all pending spans and return success status.

public flush() : bool

Forces immediate export of any buffered spans. Returns true if all spans were successfully exported.

Return values
bool

onEnd()

Called when a span ends.

public onEnd(Span $span) : void

This is invoked synchronously when the span completes. The span is fully populated at this point (end time, status, all attributes).

Parameters
$span : Span

onStart()

Called when a span starts.

public onStart(Span $span) : void

This is invoked synchronously when the span begins. Implementations should avoid blocking operations in this method.

Parameters
$span : Span 

        

        
    




    

    

                                

                

                                
    

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