Trying to access array offset on value of type bool

// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------


$lang = getLang();//当前语言

//pc端与移动端跳转
$ism = '';
$url = request()->url(true);
$siteLang = cache('siteLang')[$lang];
if($siteLang['tpl'] != $siteLang['mtpl']){

	if(request()->ismobiles() && request()->isGet()){
			$ism = '-m';
			if(request()->url() == '/'){
				header('locations:'.$url.'index-m.html');
				die();
			}elseif(!preg_match('/-m.html/',$url)){
				$go = str_replace('.html','-m.html',$url);