To add multiple options at once use pipe separated list.
<?php
$client = new GearmanClient();
$client->addOptions(GEARMAN_CLIENT_NON_BLOCKING | GEARMAN_CLIENT_FREE_TASKS | GEARMAN_CLIENT_UNBUFFERED_RESULT);
?>(PECL gearman >= 0.6.0)
GearmanClient::addOptions — Add client options
Adds one or more options to those already set.
option
       The options to add.
       One of the following constants, or a combination of
       them using the bitwise OR operator (|
):
       GEARMAN_CLIENT_GENERATE_UNIQUE,
       GEARMAN_CLIENT_NON_BLOCKING,
       GEARMAN_CLIENT_UNBUFFERED_RESULT or
       GEARMAN_CLIENT_FREE_TASKS.
      
   Always returns true.
  
To add multiple options at once use pipe separated list.
<?php
$client = new GearmanClient();
$client->addOptions(GEARMAN_CLIENT_NON_BLOCKING | GEARMAN_CLIENT_FREE_TASKS | GEARMAN_CLIENT_UNBUFFERED_RESULT);
?>