<?php

$client = new GearmanClient();

$client->addServer();

// initialize the results of our 3 "query results" here

$userInfo = $friends = $posts = null;

// This sets up what gearman will callback to as tasks are returned to us.

// The $context helps us know which function is being returned so we can

// handle it correctly.

$client->setCompleteCallback(function(GearmanTask $task, $context) use (&$userInfo, &$friends, &$posts) {

    switch($context) {

        case 'lookup_user':

            $userInfo = $task->data();

            break;

        case 'baconate':

            $friends = $task->data();

            break;

        case 'get_latest_posts_by':

            $posts = $task->data();

            break;

    }

});

// Here we queue up multiple tasks to be execute in *as much* parallelism as gearmand can give us

$client->addTask('lookup_user', 'joe@joe.com', 'lookup_user');

$client->addTask('baconate', 'joe@joe.com', 'baconate');

$client->addTask('get_latest_posts_by', 'joe@joe.com', 'get_latest_posts_by');

echo "Fetching...\n";

$start = microtime(true);

$client->runTasks();

$totaltime = number_format(microtime(true) - $start, 2);

echo "Got user info in: $totaltime seconds:\n";

var_dump($userInfo, $friends, $posts);

<?php

$worker = new GearmanWorker();

$worker->addServer();

$worker->addFunction('lookup_user', function(GearmanJob $job){

    // normally you'd so some very safe type checking and query binding to a database here.

    // ...and we're gonna fake that.

    sleep(3);

    return 'The user requested ('. $job->workload() .') is 7 feet tall and awesome';

});

$worker->addFunction('baconate', function(GearmanJob $job){

    sleep(3);

    return 'The user ('. $job->workload() .') is 1 degree away from Kevin Bacon';

});

$worker->addFunction('get_latest_posts_by', function(GearmanJob $job){

    sleep(3);

    return 'The user ('. $job->workload() .') has no posts, sorry!';

});

while ($worker->work());