php call a class function in loop multiple time issue - php

Question

I have an issue with one of API, where this API will create Order information. Each Order represents 1 buyer with multiple items. I want to loop the items in my API method. But, when I try to loop the function, it only stores the first array value, which is not what I want. I want to store a whole array of values to the Database.
Here is the API Code:
$s = $data->ItemIDs;
if($order->CreateOrderInfo()){
echo 'Order created successfully.';
echo "---";
for($i = 0; $i < sizeof($s); $i++){
$order->ItemCode = $s[$i];
$order->GetItemInfo();
if ($order->ItemCode != null){
$item_array = array(
'UserMememberNo' => $order->UserMememberNo,
'Image' => $order->Image,
'Description' => $order->Description,
'Price' => $order->Price,
'ItemBrand' => $order->ItemBrand,
'ItemModel' => $order->ItemModel
);
//GET DATA FOR ITEM TABLE
$order->ItemGUID = $data->ItemGUID;
$order->ItemName = $order->Description;
$order->ItemPrice = $order->Price;
$order->ItemQuantity = $data->ItemQuantity;
$order->ItemVariation1 = $data->ItemVariation1;
$order->ItemVariation2 = $data->ItemVariation2;
$order->ItemVariation3 = $data->ItemVariation3;
$order->ItemVariation4 = $data->ItemVariation4;
$order->ItemVariation5 = $data->ItemVariation5;
}
else{
echo json_encode('No item Found');
}
if($order->CreateItemInfo())
{
echo 'Item created';
}else{
echo 'Unable to create item';
echo '----';
}
}
if($order->CreateBuyerInfo()){
echo 'Buyer information created';
}else{
echo 'Unable to create buyer information';
}
Here is the model. This model is for inserting the values into the Database:
//CREATE FUNCTION FOR ITEM TABLE
public function CreateItemInfo() {
$sqlQuery = "INSERT INTO ".$this->item_info_table."
SET
GUID = :GUID,
ItemGUID = :ItemGUID,
ItemName = :ItemName,
ItemPrice = :ItemPrice,
ItemQuantity = :ItemQuantity,
ItemVariation1 = :ItemVariation1,
ItemVariation2 = :ItemVariation2,
ItemVariation3 = :ItemVariation3,
ItemVariation4 = :ItemVariation4";
$stmt = $this->conn->prepare($sqlQuery);
$this->GUID = htmlspecialchars(strip_tags($this->GUID));
$this->ItemGUID = htmlspecialchars(strip_tags($this->ItemGUID));
$this->ItemName = htmlspecialchars(strip_tags($this->ItemName));
$this->ItemPrice = htmlspecialchars(strip_tags($this->ItemPrice));
$this->ItemQuantity = htmlspecialchars(strip_tags($this->ItemQuantity));
$this->ItemVariation1 = htmlspecialchars(strip_tags($this->ItemVariation1));
$this->ItemVariation2 = htmlspecialchars(strip_tags($this->ItemVariation2));
$this->ItemVariation3 = htmlspecialchars(strip_tags($this->ItemVariation3));
$this->ItemVariation4 = htmlspecialchars(strip_tags($this->ItemVariation4));
$stmt->bindParam(":GUID", $this->GUID);
$stmt->bindParam(":ItemGUID", $this->ItemGUID);
$stmt->bindParam(":ItemName", $this->ItemName);
$stmt->bindParam(":ItemPrice", $this->ItemPrice);
$stmt->bindParam(":ItemQuantity", $this->ItemQuantity);
$stmt->bindParam(":ItemVariation1", $this->ItemVariation1);
$stmt->bindParam(":ItemVariation2", $this->ItemVariation2);
$stmt->bindParam(":ItemVariation3", $this->ItemVariation3);
$stmt->bindParam(":ItemVariation4", $this->ItemVariation4);
if($stmt->execute()) {
return true;
}
return false;
}
A screenshot below shows the issue, where only the first value of the array is successfully inserted to the Database.
Result of Database Insert