<?php
if(!empty($_POST["save"])) {
$con = @mysqli_connect("localhost", "root", "", "demo_jhacko");
if ($con->connect_error) {
    echo "Error: " . $con->connect_error;
    exit();
}
    $itemCount = count($_POST["item_name"]);
    $itemValues=0;
    $query = ("INSERT INTO barang (nama_barang,harga_barang) VALUES");
    $queryValue = "";
    for($i=0;$i<$itemCount;$i++) {
        if(!empty($_POST["item_name"][$i]) || !empty($_POST["item_price"][$i])) {
            $itemValues++;
            if($queryValue!="") {
                $queryValue .= ",";
            }
            $queryValue .= "('" . $_POST["item_name"][$i] . "', '" . $_POST["item_price"][$i] . "')";
        }
    }
    $sql = $query.$queryValue;
    if($itemValues!=0) {
        $result = mysqli_query($con,$sql);
        if(!empty($result)) $message = "Berhasil Menambahkan barang.";
    }
}