OrderSelect and OrderOpenPrice(); doesn't return open price for all position

You need to use loop and I see no loop is used here.

thanks . just give me example 

Loops and Closing or Deleting Orders

   for (int i=1; i<=OrdersTotal(); i++)       //Cycle for all orders..
     {                                        //displayed in the terminal
      if(OrderSelect(i-1,SELECT_BY_POS)==true)//If there is the next one
       
     }      

if(OrderSelect(1,SELECT_BY_TICKET)==true)_OOP_1 = OrderOpenPrice();

How can I get OpenPrice result with this Loop

to get always last order (1) result  

!!! 

ANY ONE CAN HELP ME

If you explained clearly what you want, then maybe somebody will be able to help you.

 look into the documentation the way to use Array

 double OOP[30];

  
 for (int i=0; i<OrdersTotal(); i++)       
     {                                       
      if(OrderSelect(i,SELECT_BY_POS)==true) OOP[i] = OrderOpenPrice();
       
     }