project2PhpVerListener.put(project, versionChangeListener);
PhpVersionChangedHandler.getInstance().addPhpVersionChangedListener(
versionChangeListener);
ProjectRemovedObserversAttacher.getInstance().addProjectClosedObserver(
project, new IProjectClosedObserver() {
public void closed() {
PhpVersionChangedHandler.getInstance()
.removePhpVersionChangedListener(
project2PhpVerListener.remove(project));
}