Warning: Undefined array key "cart" in /home/nanli/public_html/order.php on line 3
Fatal error: Uncaught ArgumentCountError: mktime() expects at least 1 argument, 0 given in /home/nanli/public_html/order.php:7
Stack trace:
#0 /home/nanli/public_html/order.php(7): mktime()
#1 {main}
thrown in /home/nanli/public_html/order.php on line 7