Description:
------------
The worker script function reverse_fn, echo's text in this code segment

# This status loop is not needed, just showing how it works
  for ($x= 0; $x < $workload_size; $x++)
  {
    echo "Sending status: " + $x + 1 . "/$workload_size complete\n";
    $job->sendStatus($x+1, $workload_size);
    $job->sendData(substr($workload, $x, 1));
    sleep(1);
  }

The line 

echo "Sending status: " + $x + 1 . "/$workload_size complete\n";

Should read

echo "Sending status: " . ($x + 1) . "/$workload_size complete\n";

Test script:
---------------
$workload_size = 2;
$x = 0;

echo "Sending status: " + $x + 1 . "/$workload_size complete\n";



Expected result:
----------------
Sending status: 1/2 complete


Actual result:
--------------
1/2 complete