My charger will not fit into my iphone 5?

No charger is working and it was just working and i used all the chargers i have and it won't work! Ple help me

I've have had trouble with dirt in there. I took some air and blew it out and it started working again.

Clean the part that you plug into the iphone port. If there's dirt covering the parts where the electricity flows it ain't gonna charge the iphone.

After IO7 came out, your phones are smart enough to identify non-apple chargers. If your charger isn't made by apple, your out of luck.sorry.