(PECL gearman >= 0.5.0) Get size of work load

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

(PECL gearman >= 0.5.0) Get an errno value

(PECL gearman >= 0.5.0) Returns an error string for the last error encountered.

(PECL gearman >= 0.5.0) Run a single high priority task

(PECL gearman <= 0.5.0) Get the unique identifier for a task (deprecated)

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

(PECL gearman >= 0.6.0) Remove worker options

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

(PECL gearman >= 0.5.0) Set worker options