DDE connector for esignal

I need someone experienced with DDE, specifically esignal's DDE. I have one server that will be installed with esignal and I need a module (in PHP preferred) to be a DDE connector between esignal's DDE and mysql database. So the module will connect to esignal DDE and store the real time price to the mysql database, but it must be done in real time mode not polling (not 1 time update per second but real time update). Let me know if you have more question about it.