<?php
include "config.php";

if (isset($_POST['submit']))
    {

    // Count total files

    $countfiles = count($_FILES['files']['name']);

    // Prepared statement

    $query = "INSERT INTO images (name,image) VALUES(?,?)";
    $statement = $conn->prepare($query);

    // Loop all files

    for ($i = 0; $i < $countfiles; $i++)
        {

        // File name

        $filename = $_FILES['files']['name'][$i];

        // Get extension

        $tmp = (explode(".", $filename));
        $ext = end($tmp);

        // Valid image extension

        $valid_ext = array(
            "png",
            "jpeg",
            "jpg"
        );
        if (in_array($ext, $valid_ext))
            {

            // Upload file

            if (move_uploaded_file($_FILES['files']['tmp_name'][$i], 'uploads/' . $filename))
                {

                // Execute query

                $statement->execute(array(
                    $filename,
                    'uploads/' . $filename
                ));
                }
            }
        }

    echo "File upload successfully";
    }

?>