My iphone8 won't turn on? I've tried holding & pressing all the buttons, & plugged it into 3 different charging ports It still won't work?

How do I get it to turn on?!
I've also tried using different charger cords. The phones been plugged in for like an hour and no luck

Take it to an Apple store or other iPhone dealer…

Does it show any signs of light if not dead battery fixs1 go take it to repair shop 2 new phone