Fatal error: Uncaught Error: Call to a member function query() on string in /www/wwwroot/www.k221.com/Mysql.php:90
Stack trace:
#0 /www/wwwroot/www.k221.com/index.php(56): Mysql->all()
#1 {main}
thrown in /www/wwwroot/www.k221.com/Mysql.php on line 90