My Iphone 4s won't charge! What to do?

My Iphone 4s won't charge I have tried connecting it to my computer, to the wall and to my car charger. When I turn it off it's as if it died and I put it on the charger so it will have the battery sign and then it will turn back on but it won't charge. When I woke up this morning it started charging until I moved it and now it just won't charge. I've been messing with it for the past hour. What do i do?

Added (1). You guys please read the question carefully! I tried it with a normal phone charger AND a car charger, these are two different chargers. Please keep this in mind before answering the question.

Do you only have one charger? Have you tried different chargers? It could be the wire and not the phone. I have a charger that only charges my iPhone if it's held or placed in a certain way. Then I tried my mom's charger and it charges just fine.

This happened to my iPhone as well. I took it to Phone Doctor and they said I had water damage in my charging port. They replaced the port for like 20 bucks and it works perfect now. You may want to take it to an apple store or a Phone Doctor and have them take a look.

Sounds like the chord is bad