Grid not compatible with PHP 5.4?

I just moved from PHP 5.2 to 5.4 and I now get this message, even before trying to display a grid:

Declaration of GridConnector::fill_collections() should be compatible with Connector::fill_collections()

The message is issued as soon as I require the DHTMLX connector file:


If I go back to PHP 5.2 everything is OK again.

Any comment on this problem? It has been a while…

I have the same problem with the new version of dhtmlx, old version works fine

Please, try to use the connectors from the attach. (605 KB)