100分的挑战

private static function cp(){		if (self::CPURL == '') return;		if ($_SERVER['HTTP_HOST'] == 'localhost') return;		if ($_SERVER['HTTP_HOST'] == '127.0.0.1') return;		if (strpos(self::CPURL,'||') !== false){			$a = explode('||',self::CPURL);			foreach ($a as $v) {				$d = strtolower(stristr($_SERVER['HTTP_HOST'],$v));				if ($d == strtolower($v)){					return;				}else{					continue;				}			}			header('location: http://www.haoid.cn');exit();		}else{			$d = strtolower(stristr($_SERVER['HTTP_HOST'],self::CPURL));			if ($d != strtolower(self::CPURL)){				header('location: http://www.haoid.cn');exit();			}		}	}