https://m.facebook.com/story.php?story_fbid=123456789012345&id=123456789012345 Or sometimes:
https m facebook com home php story_fbid https m facebook com home php story_fbid
https://m.facebook.com/story.php?story_fbid=123456789&id=987654321 https://m
This likely came from a truncated or malformed link. Let me break it down and then give you a deep technical guide. A full Facebook URL with story_fbid usually looks like: https m facebook com home php story_fbid