How do I get Buy orders into an array in mql4?

Question

I'd like to get the buy open orders of several orders into an array (like below):

OpenPrices:

BUY: 1.62181 (ticket:1)

Sell: 1.61282 (ticket: 2)

Buy: 1.59635 (ticket: 3)

Buy: 1.63566 (Ticket: 4)

Sell: 1.62332 (Ticket: 5)

I am trying to extract the Buy Open Prices to BuyOpenPriceArray[], such that:

BuyOpenPriceArray[0]: 1.63566 (Ticket:4)

BuyOpenPriceArray[1]: 1.59635 (Ticket:3)

BuyOpenPriceArray[2]: 1.62181 (Ticket:1)

And only BuyOpenPriceArray[2] is filled with changing the three Buy OpenPrices, one after another. [0] and [1] are not filled. What did I do wrong?

`void OnTick()
 {

   double BuyOpenPriceArray[];
   int BuyTicketNumberArray[];
   int NumberOfBuyOrders=OrderTypeCounter(1);
   int NumberOfSellOrders=OrderTypeCounter(2);

   
   
   if((Open[1]<Close[1]) && OrdersTotal()==6) //Opens 4 orders (For OrdersTotal()== 0 to 3)
   {
      EnterTrade(OP_SELL, LotSize, clrDarkKhaki, magic);
   }
   if((Open[1]>Close[1]) && OrdersTotal()==5)
   {   
      EnterTrade(OP_SELL, LotSize, clrDarkKhaki, magic);
   }
   if((Open[1]<Close[1]) && OrdersTotal()==4) //Opens 4 orders (For OrdersTotal()== 0 to 3)
   {
      EnterTrade(OP_BUY, LotSize, clrAqua, magic);
   }
   if((Open[1]>Close[1]) && OrdersTotal()==3)
   {   
      EnterTrade(OP_BUY, LotSize, clrAqua, magic);
   }
   if((Open[1]<Close[1]) && OrdersTotal()==2) //Opens 4 orders (For OrdersTotal()== 0 to 3)
   {
      EnterTrade(OP_SELL, LotSize, clrDarkKhaki, magic);
   }
   if((Open[1]>Close[1]) && OrdersTotal()==1)
   {   
      EnterTrade(OP_SELL, LotSize, clrDarkKhaki, magic);
   }
   if((Open[1]<Close[1]) && OrdersTotal()==0) //Opens 4 orders (For OrdersTotal()== 0 to 3)
   {
      EnterTrade(OP_BUY, LotSize, clrAqua, magic);
   }

   
//------
    
   
   for(int i=0;i<=OrdersTotal()-1;i++)
   {  
      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
      {
         if(OrderMagicNumber()==magic)
         {
            if(OrderType()==OP_BUY) //Newest Buy order is LARGEST Open Price
            { 
               for(int j=NumberOfBuyOrders-1;j>=0;j++) 
               {

                  ArrayResize(BuyOpenPriceArray,NumberOfBuyOrders+1);
                  BuyOpenPriceArray[j]=OrderOpenPrice();
                  
                  Print("j is: ",j, "BuyOpenPriceArray[j]: ", BuyOpenPriceArray[j]);
                  
                  break;
               }
            }  
         }
      }
   }
   
   } 
`