indexing-rich-documents-in-solr.php

<?php
$url = search_curl_url(); // returns SOLR_SERVER_HOSTNAME . ':' . SOLR_SERVER_PORT . '/solr/update/extract?'
$url .= 'literal.id=' . 'forum_file_' . $id . '&literal.module=forum&literal.type=3&literal.courseid=' . $post->course;
$params = array();
$params[$id] = $file; // adds the $file stdClass object into $params array
$curl->post($url, $params); // sets CURLOPT_POST = 1
                            // sets CURLOPT_POSTFIELDS = array ($id => '@' . $filepath) via add_to_curl_request
                            // finally posts this curl request
?>