<?php

require_once 'Database.php';
$locationLatArray = $_POST['latArray'];
$locationLngArray = $_POST['lngArray'];
$string = "";
$dbInstance = Database::getDBInstance();
$dbConnection = $dbInstance->getDBConnection();
$query = "SELECT driver_id FROM driver_track";
$result = mysqli_query($dbConnection, $query);
if (mysqli_num_rows($result) > 0) {
    $i = 0;
    // Counter for lat/lngArray
    while ($row = mysqli_fetch_assoc($result)) {
        $driver_id = $row["driver_id"];
        $query = "UPDATE driver_track SET latitude = '{$locationLatArray[$i]}',\n                    longitude = '{$locationLngArray[$i]}' WHERE driver_id = '{$driver_id}'";
        if (!mysqli_query($dbConnection, $query)) {
            echo "Problem: " . $query;
        }
        $i++;
    }
    echo $i - 1;
}