MOODLE: Descargar fichero externo y grabarlo en el Moodle

MOODLE: Descargar fichero externo y grabarlo en el Moodle

<?php
$record = new StdClass();
            $record->course = $courseid;
            $record->contextid = $usercontextid;
            $record->userid = $USER->id;
            $record->component = 'user';
            $record->filearea = 'draft';
            $record->itemid = $draftitemid;
            $record->filename = $scormFilename;
            $record->filepath = '/';


$fgc = file_get_contents($'http://www.raul.com/wp-content/'.$scormFilename);

if ($fgc) {
    $fs->create_file_from_string($record, $fgc); // Guardar
}
?>