As far as Im aware there is no intrinsic limit inside PHP on database size.
there are some limits on MySQL, but usually thats an artificat of what operating system you are using to host the db server. http://dev.mysql.com/doc/refman/5.7/...ize-limit.html suggests that thsie range form 2GB to 16TB.
ISP's often limit server sizes within a costing model. IE you can have unlimited space if you pay more. so you need toto talk to whoever hostsd your website and find waht they can do. if they can't time to move hosts
increasing a db server size by that sort of amount could have a significant impact on other hardware areas
bear in mind sizing a db server so that it makes good use of available resources can be a black art. you need to know where the bottlenecks in performance are.
is it time related (ie are there specific times of the dsat when the server gets clogged
is it network related (is your network infrastructure up to the job)
is it server (either web/php server) limited through inadeequate processor/memory/other factos
is it server (db server) limited through inadeequate processor/memory/other factors.
is the network connection from web to db server as fast as possible/required)
I'd rather be riding on the Tiger 800 or the Norton