Notice: Undefined index: bill_d_num in C:\xampp\htdocs\skymart\add_cart.php on line 6

Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in C:\xampp\htdocs\skymart\add_cart.php on line 12

Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in C:\xampp\htdocs\skymart\add_cart.php on line 24

Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in C:\xampp\htdocs\skymart\add_cart.php on line 25

Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given in C:\xampp\htdocs\skymart\add_cart2.php on line 6