(PECL gearman >= 0.6.0) Register a function with the job server

(PECL gearman <= 0.5.0) Send data for a running job (deprecated)

(PECL gearman >= 0.5.0) Run a list of tasks in parallel

(PECL gearman >= 0.6.0) Set socket I/O activity timeout

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

(PECL gearman >= 0.5.0) Set a function to be called on task completion

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

(PECL gearman >= 0.5.0) Add a list of job servers to the client

(PECL gearman <= 0.5.0) Send fail status (deprecated)

(PECL gearman >= 0.5.0) Get the unique identifier