I plugged my phone up into a charger, the charger sparked and i unplugged my phone and now it wont charge at all, does anyone know what is wrong or how much it would be to fix it?

The most probable answer is that their was a short on the charger causing your phone's charging port to blow out. You can fix this yourself with a hot air soldering gun to remove the charging port and replace it with an identical port but it is not recommended if you have a warranty. As for prices it depends on the phone.