Callback function when there is a data packet for a task (deprecated)

# GearmanClient::setClientCallback

(PECL gearman <= 0.5.0)

GearmanClient::setClientCallback — Callback function when there is a data packet for a task (deprecated)

### Description

public GearmanClient::setClientCallback(callable `$callback`): void

Sets the callback function for accepting data packets for a task.

> Note: This method has been replaced by GearmanClient::setDataCallback() in the 0.6.0 release of the Gearman extension.

> Note:

> The callback will only be triggered for tasks that are added (e.g. by calling GearmanClient::addTask()) after calling this method.

### Parameters

`callback`

  A function or method to call. It should return a valid Gearman return value.

  If no return statement is present, it defaults to `GEARMAN_SUCCESS`.

  callback(GearmanTask `$task`, mixed `$context`): int
  `task`

    The task this callback is called for.

  `context`

    Whatever has been passed to GearmanClient::addTask() (or equivalent method) as `context`.

### Return Values

Returns `true` on success or `false` on failure.

### See Also

- GearmanClient::setCompleteCallback() - Set a function to be called on task completion
- GearmanClient::setCreatedCallback() - Set a callback for when a task is queued
- GearmanClient::setDataCallback() - Callback function when there is a data packet for a task
- 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

`↑` and `↓` to navigate • `Enter` to select • `Esc` to close • `/` to open