Error 404 trying to get metadata from an AWS EC2 instance with PHP

Question

I'm trying to get the user-data from an AWS EC2 instance with PHP using:

<?php
$instance_id = file_get_contents("http://instance-data/latest/meta-data/user-data");
?>

However, I keep getting:

PHP Warning:  file_get_contents(http://instance-data/latest/meta-data/user-data): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in ... while reading response header from upstream, client: ..., server: ..., request: "GET /index.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:"...

Why?

Answer 1

Ok, it was an easy error - that cost me a lot of time -.

The path should be:

http://instance-data/latest/user-data