Stackable::synchronized Synchronization &reftitle.description; final public mixedStackable::synchronized Closureblock mixed... Executes the block while retaining the synchronization lock for the current context. &reftitle.parameters; block The block of code to execute ... Variable length list of arguments to use as function arguments to the block &reftitle.returnvalues; The return value from the block &reftitle.examples; synchronized(function($object){ var_dump($object->isWaiting()); $object->notify(); }, $this); } } /** create worker **/ $my = new My(); /** stack my **/ /** execute something here **/ $my->synchronized(function($object){ $object->wait(); }, $my); ?> ]]> &example.outputs;