GearmanClient::setWarningCallback
  Set a callback for worker warnings
  
 
  Description
  
   public bool GearmanClient::setWarningCallback(callable $callback)
  
  Note: 
 
  The callback will only be triggered for tasks that are added (e.g. by calling  GearmanClient::addTask)
  after calling this method.
 
  
 
  Parameters
  
   
    
 - 
callback
- 
  
   A function or method to call.
   It should return a valid Gearman return value.
   
   If no return statement is present, it defaults to GEARMAN_SUCCESS.
 
   int callback(GearmanTask $task, mixed$context)
 
   
    - 
task
- 
     
      The task this callback is called for.
      
- 
context
- 
     
      Whatever has been passed to  GearmanClient::addTask (or equivalent method) as context.
 
 
 
 
  Return Values
  
   Returns true on success or false on failure.
  
  
 
  See Also
  
   
    -  GearmanClient::setDataCallback
-  GearmanClient::setCompleteCallback
-  GearmanClient::setCreatedCallback
-  GearmanClient::setExceptionCallback
-  GearmanClient::setFailCallback
-  GearmanClient::setStatusCallback
-  GearmanClient::setWorkloadCallback