I am prety new to GIS. I have set up a postgis database with al large dataset and a openlayers front-end to display it. But since the dataset is getting prety big I am looking for a way to only load the polygons that are currently visible. Currently I am looking at PHP mapscript. Is it posible to achieve wat I want with this or do i need mapserver or something else for this?
I hope someone can point me in the right direction.