Set a function to be called on task completion

# GearmanClient::setCompleteCallback

(PECL gearman >= 0.5.0)

GearmanClient::setCompleteCallback — Set a function to be called on task completion

### 説明

public GearmanClient::setCompleteCallback ( callable `$callback` ) : bool

Use to set a function to be called when a GearmanTask is completed, or when GearmanJob::sendComplete() is invoked by a worker (whichever happens first).

This callback executes only when executing a GearmanTask using GearmanClient::runTasks(). It is not used for individual jobs.

### パラメータ

`callback`

  A function to be called

### 返り値

成功した場合に `TRUE` を、失敗した場合に `FALSE` を返します。

### 参考

- GearmanClient::setDataCallback() - Callback function when there is a data packet for a task
- 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