I am sure lot of iphoners want to find out how to turn off iphones. Here's how you do it:
1. Press and hold the power button (top left corner).
2. You will see Slide to power off, do it.
Your iphone will be turned off.
3. To turn it back on, do the same, press and hold the power button. You will see the apple icon or logo. It may take few minutes to boot up. Here's an interesting video to watch too:
