65        if (isset(self::$instance) and self::$instance) {
 
   91        $this->open_robots = (bool) $this->
settings->get(
'open_google', 
false);
 
  103        if (!function_exists(
'apache_lookup_uri')) {
 
  108        $status_info = @apache_lookup_uri(
$url);
 
  111        if ($status_info === 
false && ini_get(
'allow_url_fopen')) {
 
  113            $fp = @fopen(
$url, 
'r');
 
  121        return $status_info->status == 200;
 
An exception for terminatinating execution or to throw for unit testing.
robotSupportEnabled()
Check if client is open for robots.
checkRewrite()
Indirect Check of allow override.
__construct()
Private constructor => use getInstance.
static _getInstance()
Get instance.