So my phone is plugged into the charger but wont charge while the phone is on. I turned it off all night last night with the battery at 7% and woke up with it at 100%. Has anyone else had this problem and if so how is it fixed.
Go to Correct Answer
Could be battery going bad or charger going bad.
Cheapest first step is borrow another charger and see if that fixes the problem. If so, get a new charger.
If not, I would advise taking it to an Apple Store to get checked out.