public function Check()
{
$cur_users = array();
foreach ($this->actives as $active => $data) {
if (is_array($data) && isset($data['username']) && $data['username'] != $this->username && $data['path'] == $this->path) {
$cur_users[] = $data['username'];
}
}
if (count($cur_users) != 0) {
echo formatJSEND("error", "Warning: File " . substr($this->path, strrpos($this->path, "/") + 1) . " Currently Opened By: " . implode(", ", $cur_users));
} else {
echo formatJSEND("success");
}
}