为什么$ _SERVER ['REMOTE_ADDR']返回127.0.0.1

Question

I am editing a remote server, and for some reason it is returning 127.0.0.1, I tried it on my iPhone too and it did the same thing.

echo $_SERVER['REMOTE_ADDR']; // returns 127.0.0.1

Answer 1

It mean that the client who execute the script is hosted on local host.

Could be because the script that contain $_SERVER['REMOTE_ADDR'] is called with a CURL request from another script on the same server.

Could also be because of a proxy system.

Possible indirect duplicate of Using Django, why would REMOTE_ADDR return 127.0.0.1 on a web server?