How can I recover my deleted photos on iPhone?

Deleted photos are stored for 30 days before they are permanently deleted.

Tap to open Photos

Tap Albums at the bottom of the screen

Tap Recently Deleted

If the photos are are not there, they are already gone

When you delete the photo you have 30 days to recover from the Recently Deleted folder. If it has been longer than the 30 days or you have deleted them from that folder also, then they are gone. You would have had to save them in another location as a backup. When deleted from the Recently Deleted folder you will receive a prompt saying that the photos will be permanently deleted if you proceed.