I was just wondering, since the new DS4 uses Micro USB, the same as most Android phones, can it be charged with a phone charger?
Yes, it will work. Most people with an Android phone have these cables...they are not rare. The problem is they are not USB 3.0 cables, and you DO NOT WANT USB 3.0 cables because the Micro Connector on USB 3.0 is VERY different.
What you want if you want a nice 6ft to 10ft cable is a USB 2.0 - A-Male to Micro-B Cable.