(PECL gearman >= 0.5.0)
GearmanTask::recvData — Read work or result data into a buffer for a task
$data_len
   )
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.
data_lenLength of data to be read.
   An array whose first element is the length of data read and the second is the data buffer.
   Returns FALSE if the read failed.