My daughter lost her phone what should I do

Start here: https://support.apple.com/en-us/HT201472

One way you can locate your daughters iPhone is by using the Find My network if you enabled it on your device.

How To Use Find My To Locate Your Missing Device

If you enabled it you can follow these steps to try and locate it:

1. Open iCloud.com
2. Then Log into whosever account the device is under
3. Click on the Find IPhone App and sign in
4. Once in you can click on the header that says all devices and locate your device
5. Once you click on the device you can view its location, enter into locked mode to prevent people from using it, and play a sound to try and find it if its nearby

I hope this helps you recover your lost iPhone and if you need any further assistance I would be happy to help you.

-DJ