(PECL gearman >= 0.5.0) Get the size of returned data

(PECL gearman >= 0.6.0) Get the application context

(PECL gearman >= 0.5.0) Set client options

(PECL gearman >= 0.6.0) Send the result and complete status

(PECL gearman >= 0.6.0) Add worker options

(PECL gearman >= 0.5.0) Wait for and perform jobs

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

(PECL gearman >= 0.5.0) Get completion percentage denominator

(PECL gearman >= 0.5.0) Get the job handle

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