GearmanWorker::addFunction
(PECL gearman >= 0.5.0)
GearmanWorker::addFunction — Register and add callback function
Description
Registers a function name with the job server and specifies a callback corresponding to that function. Optionally specify extra application context data to be used when the callback is called and a timeout.
Parameters
- function_name
-
The name of a function to register with the job server
- function
-
A callback that gets called when a job for the registered function name is submitted
- context
-
A reference to arbitrary application context data that can be modified by the worker function
- timeout
-
An interval of time in seconds
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 Simple worker making use of extra application context data
<?php
# get a gearman worker
$worker= new GearmanWorker();
# add the default server (localhost)
$worker->addServer();
# define a variable to hold application data
$count= 0;
# add the "reverse" function
$worker->addFunction("reverse", "reverse_cb", &$count);
# start the worker
while ($worker->work());
function reverse_cb($job, $count)
{
$count++;
return "$count: " . strrev($job->workload());
}
?>
Running a client that submits two jobs for the reverse function would have output similar to the following:
1: olleh 2: dlrow