Simpan Multipel dengan PHP

<?php
$mysqli = new mysqli('localhost', 'root', '', 'mydatabase');
$n = 0;
foreach($_POST['nama'] as $i=>$nama){
    // parse data
    $nama = $mysqli->escape_string($nama);
    $job = $mysqli->escape_string($_POST['job'][$i]);
    $kota = $mysqli->escape_string($_POST['kota'][$i]);
    $phone = $mysqli->escape_string($_POST['phone'][$i]);
    // proses simpan
    $save = $mysqli->query("INSERT into tbldata(nama,job,kota,phone) VALUES('$nama','$job','$kota','$phone')");
    if($save)
        $n = $n+1;
}

if($n>0){
    echo "Data berhasil disimpan...";
}