reverse_do.php

<?PHP
  // Create our client object.
  $client= new GearmanClient();

  // Add default server (app.gearmanhq.com).
  $client->addServer('hydra.gearmanhq.com', 4745);
  //$client->addServer('localhost', 4731);
  //$client->addServer('gm00.gearmanhq.net', 4745);

  echo "Sending job...\n";
  # Send reverse job

  $result = $client->do("reverse", "Hello World!");

  echo "Result: {$result}" . PHP_EOL;
  ?>

reverse_worker.php

<?PHP

  $worker = new GearmanWorker();
  $worker->addServer('hydra.gearmanhq.com', 4745);
  //$worker->addServer('gm00.gearmanhq.net', 4745);
  //$worker->addServer('localhost', 4731);
  //$worker->addServer();
  $worker->addFunction('reverse', 'reverse_function');

  while ($worker->work());

  function reverse_function($job)
  {
      //  For example purpose
      echo "Received job: {$job->handle()}" . PHP_EOL; 
      return strrev($job->workload());
  }
  ?>