Even in our increasingly wireless world, iPhone owners still have to plug in to their computers every now and then. Whether it's for backups, quick music or video transfers, or other reasons, sometimes there's no way around it. First, you need to dig out a Lightning cable, then you have to remember how to connect to iTunes.
That said, your iPhone not showing up in iTunes can have many causes
Your guns (you can try these out) don’t automatically reload, so it’s better than tap the manual reload button whenever you get a chance to breath. Once you run low on ammo, reload ASAP. Never keep blasting until the last bullet, folks. Reload before you’re stuck with two/three remaining bullets in a clip.