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PassThroughSpanProcessor implements SpanProcessor

Read onlyYes

FinalYes

Exports each span immediately when it ends.

Unlike BatchingSpanProcessor, this processor exports spans synchronously one at a time. This is useful for debugging and development where immediate visibility of spans is more important than performance.

Example usage:

$processor = new PassThroughSpanProcessor($spanExporter);

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.

__construct()


    public
                    __construct(SpanExporter $exporter) : mixed

Parameters

$exporter : SpanExporter

exporter()

Get the exporter used by this processor.


    public
                    exporter() : SpanExporter

Return values

SpanExporter

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