(PECL gearman <= 0.5.0)
GearmanClient::setClientCallback — Callback function when there is a data packet for a task (deprecated)
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This method has been replaced by GearmanClient::setDataCallback() in the 0.6.0 release of the Gearman extension.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.
callbackA 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
taskThe task this callback is called for.
context Whatever has been passed to GearmanClient::addTask() (or equivalent method) as context.
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https://www.php.net/manual/en/gearmanclient.setclientcallback.php