if (!empty($_POST['edit_ban'])){
$textban = abs(intval($_POST['textban']));
if ($mysqli->query("UPDATE `users` SET `textban` = '".$textban."' WHERE `id` = '".$id."' LIMIT 1") == true) echo ok('Сохранено');
$arr_user = $mysqli->query("SELECT * FROM `users` WHERE `id` = '".$id."' LIMIT 1")->fetch_array();
}
if ($user['level'] == 1) echo '<div class="block"><form method="post" action="'.URL.'/adm/user.php?id='.$id.'">
Причина бана:
<input class="input2" type="text" name="textban" value="'.$arr_user['textban'].'" size="6"/>
<input class="button2" type="submit" name="edit_ban" value="Сохранить"/></div>';