(PECL gearman <= 0.5.0) Set application data (deprecated)

(PECL gearman >= 0.5.0) Get the job handle for the running task

(PECL gearman >= 0.5.0) Add a task to get status

(PECL gearman >= 0.5.0) Run a single task and return a result [deprecated]

(PECL gearman <= 0.5.0) Callback function when there is a data packet for a task (deprecated)

(PECL gearman >= 0.5.0) Add a high priority background task to be run in parallel

(PECL gearman >= 0.5.0) Set a callback for worker exceptions

(PECL gearman >= 0.6.0) Get the application context

(PECL gearman >= 0.5.0) Set client options

(PECL gearman >= 0.5.0) Send data to all job servers to see if they echo it back [deprecated]