function set_config($id, $old, $new)
{
global $FILE_GROUP_THREAD;
$new = trim($new);
$old = trim($old);
if ($new != $old) {
$msg_o = "{$id}={$old}";
$msg = "{$id}={$new}";
$old = rep_spc($old);
$new = rep_spc($new);
`sed -i "s/^{$msg_o}\$/{$msg}/g" {$FILE_GROUP_THREAD}`;
}
}
function del_group()
{
global $FILE_GROUP;
global $FILE_GROUP_THREAD;
$g_n = trim($_POST['group_name']);
$id = time();
if (`cat {$FILE_GROUP} | grep "^{$g_n}\$"` == '') {
exit;
}
`cat {$FILE_GROUP} | grep -v "^{$g_n}\$" > /tmp/{$id}`;
`cat /tmp/{$id} > {$FILE_GROUP}`;
`rm /tmp/{$id}`;
$old = rep_spc($g_n);
$new = "Undefined Group";
`sed -i "s/{$old}\$/{$new}/g" {$FILE_GROUP_THREAD}`;
if (`cat {$FILE_GROUP} | grep "^{$g_n}\$"` == '') {
echo 'deleted';
}
}
