iPhone charging port issue

I assume by "charger" you mean "cable?"

Check your charging port for lint or other debris that may have gotten jammed into the back. Use something non-conductive like a toothpick to carefully probe for and remove anything.

Hey there,

first of all make sure that there isn’t any dust or dirt in your iPhone charger entrance.

if there is nothing there make sure your charging cable in good condition, if it’s in a good condition your iPhone might need service ☞ Contact Apple for support and service - Apple Support