- 
        
         commit
         - a method that commits (successfully completes) an in-flight unit
         of work.
         
- 
        
         connect
         - a method that connects a PHP script to a messaging server.
         
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         disconnect
         - a method that disconnects a PHP script from a messaging server.
         
- 
        
         isConnected
         - a method that checks whether a PHP script is connected to a
          messaging server.
         
- 
        
         peek
         - a method that receives a message from a queue without removing it
          from the queue.
         
- 
        
         peekAll
         - a method that receives one or messages from a queue without
         removing them from the queue.
         
- 
        
         receive
         - a method that receives a message from a queue or subscription.
         
- 
        
         remove
         - a method that removes a message from a queue.
         
- 
        
         rollback
         - a method that cancels (rolls back) an in-flight unit of work.
         
- 
        
         send
         - a method that sends a message to a queue or posts to a topic
         
- 
        
         setDebug
         - a method that switches additional debugging output on or off
         
- 
        
         subscribe
         - a method that creates a subscription to one or more topics
         
- 
        
         unsubscribe
         - a method that destroys a subscription to one or more topics