function course_belonged($cid, $uid)
{
$uids = uids_load_from_cid($cid);
if (in_array($uid, $uids)) {
return true;
} else {
return false;
}
}
<?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);
}