GearmanClient::setDataCallback

(PECL gearman >= 0.6.0)

GearmanClient::setDataCallback — Callback function when there is a data packet for a task

public GearmanClient::setDataCallback ( callable $callback ) : bool

Sets the callback function for accepting data packets for a task. The callback function should take a single argument, a GearmanTask object.

成功时返回 TRUE，或者在失败时返回 FALSE。

GearmanClient::setCompleteCallback() - Set a function to be called on task completion
GearmanClient::setCreatedCallback() - Set a callback for when a task is queued
GearmanClient::setExceptionCallback() - Set a callback for worker exceptions
GearmanClient::setFailCallback() - Set callback for job failure
GearmanClient::setStatusCallback() - Set a callback for collecting task status
GearmanClient::setWarningCallback() - Set a callback for worker warnings
GearmanClient::setWorkloadCallback() - Set a callback for accepting incremental data updates

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