function view_courses_by_uid($uid)
{
//Return courses list by user ID
$output = '';
$course_user_cids = array();
$courses = array();
$course_users = course_users_load($uid);
foreach ($course_users as $course_user) {
$course_user_cids[] = $course_user['Course_ID'];
}
if ($_SESSION['rid'] == 1) {
$course_user_cids = cids_load_all();
}
sort($course_user_cids);
foreach ($course_user_cids as $course_user_cid) {
$courses[] = course_load($course_user_cid);
}
usort($courses, 'sort_course_code_ascend');
if (count($courses) > 0) {
$output .= '<div class="heading">My courses</div>';
$output .= '<ul>';
for ($i = 0; $i < count($courses); $i++) {
if (isset($courses[$i])) {
$course = course_load($courses[$i]['Course_ID']);
$users = users_load_by_cid($courses[$i]['Course_ID']);
$output .= '<li class="course">';
$output .= '<a title="' . $course['Course_Name'] . '" class="cid-' . $course['Course_ID'] . ' course_code" href="?p=course/' . $course['Course_Code'] . '">' . $course['Course_Code'] . '</a><br/>';
$output .= '<span class="course_name">' . $course['Course_Name'] . '</span>';
$output .= '</li>';
}
}
$output .= '</ul>';
}
return $output;
}
<?php
$cid = isset($_POST['cid']) ? $_POST['cid'] : '';
$course = course_load($cid);
$users = users_load_by_cid($cid);
$users_diff = array();
$uids = uids_load_all_by_rid(3);
$course_uids = uids_load_from_cid($cid);
$diff_uids = array_diff($uids, $course_uids);
foreach ($diff_uids as $diff_uid) {
$user_diff = user_load($diff_uid);
$users_diff[] = $user_diff;
}
$users = array_filter($users, array(new filter('3'), 'filter_rid'));
$users_diff = array_filter($users_diff, array(new filter('3'), 'filter_rid'));
$users_label = 'lecturers';
sort($users);
sort($users_diff);
$to_uids = isset($_POST['toBox']) ? $_POST['toBox'] : array();
$from_uids = isset($to_uids) ? array_diff($uids, $to_uids) : $uids;
sort($from_uids);
sort($to_uids);
if (isset($_POST['submit'])) {
foreach ($from_uids as $from_uid) {
delete_course_user($cid, $from_uid);
}
if (isset($to_uids)) {
foreach ($to_uids as $to_uid) {
delete_course_user($cid, $to_uid);
create_course_user($cid, $to_uid);
}