<?php
//$msg = explode(",",$_POST['temp']);
$conn = mysqli_connect("177.222.119.33", "Ale", "Tykun.2026", "espdb", 4000);
$query = "SELECT data_volt, data_amp from plc_esp where data_id = (select max(data_id) from plc_esp)";
$result = $conn->query($query);
$traffics = $result->fetch_all(MYSQLI_ASSOC);
foreach ($traffics as $v) {
    $val1 = $v['data_amp'];
    $val2 = $v['data_volt'];
}
echo $val2;
?>