Question

curl -F 'access_token=...' \
     -F 'message=Hello, Arjun. I like this new API.' \
     https://graph.facebook.com/arjun/feed

The documentation says I need to issue one to publish to the wall.

Answer 1

In php use the curl* family of functions.

an example:

<?php

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, 'https://graph.facebook.com/arjun/feed');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, array('access_token' => 'my token',
                                           'message' => 'Hello, Arjun. I like this new API.'));

curl_exec($ch);