如何使用浏览按钮添加多个图像

我有以下代码，我可以在其中上传单个图像。此图像存储在数据库和文件夹中。现在我想要的是添加多个图像。我该怎么做。帮助我走出困境。

        <?php
            $uploadDir ="C:/wamp/www/dragongym/customers/";
                if(isset($_POST['submit']))
                {
                    $intime =DATE("H:i", STRTOTIME($_POST['intime']));
                    $outtime =DATE("H:i", STRTOTIME($_POST['outtime']));
                    date_default_timezone_set('Asia/Calcutta');
                     $today         =   date("Y-m-d");
                    $msg="";
                    $res = "SELECT customer_id FROM customer ORDER by customer_id DESC LIMIT 1";
                    $qur = mysql_query($res);
                    while($row = mysql_fetch_array($qur, MYSQL_BOTH))
                    {
                        $last_id = $row['customer_id'];
                        $plus_id = 1;
                    }
                    if( $last_id !="")
                    {
                        $cust_id = $last_id + $plus_id;
                    }
                    $filePath="";
                    if($_FILES['cimage']['size'] > 0)
                    {
                        //  echo $cust_id;
                        // Temporary file name stored on the server for pdf
                        $filename  = basename($_FILES['cimage']['name']);
                        $extension = pathinfo($filename, PATHINFO_EXTENSION);
                        $new       = $cust_id.'.'.$extension;
                        $tmpName1  = $_FILES['cimage']['tmp_name'];
                        $fileSize = $_FILES['cimage']['size'];
                        $fileType = $_FILES['cimage']['type']; 
                        $filePath = $uploadDir . $new;
                        $resultes = move_uploaded_file($tmpName1, $filePath);
                        if (!$resultes)
                        {
                            echo "Error uploading file";
                            exit;
                        }
                        if(!get_magic_quotes_gpc())
                        {
                            $new = addslashes($new);
                            $filePath = addslashes($filePath);
                        }
                    }
                    $sql = 'INSERT INTO customer(customer_name,roll_no,customer_number,customer_address,tariff_id,intime,outtime,customer_image,active,joining_date) VALUES("'.$_POST['name'].'","'.$_POST['roll'].'","'.$_POST['number'].'","'.$_POST['address'].'","'.$_POST['tariff'].'","'.$intime.'","'.$outtime.'","'.$filePath.'","1","'.$today.'")';
                    $msg="<p style='"color:#99CC00; font-size:13px;'"> Successfully!</p>";
                    if (!mysql_query($sql, $link))
                             {
                                     die('Error: ' . mysql_error());
                             }

        }
        ?>
        <form action="#" method="post" enctype="multipart/form-data">
        <h2>Registration Form</h2><?php echo $msg; ?>
        <label>Name</label>
        <input type="text" value="" name="name" id="name" required class="txtfield">
        <label>Roll Number</label>
        <input type="text" value="" name="roll" id="roll" required class="txtfield">
        <label>Mobile Number</label>
        <input type="text" value="" name="number" required class="txtfield" id="mobnum">
        <label>Address</label>
        <textarea name="address" class="txtfield"></textarea>
        <label>Upload Photo</label>
        <input type="file" value="" name="cimage" class="txtfield">
        <!-- <label style="display: block">Timing</label>
        <input type="text" value="" name="intime" placeholder="Intime" required class="timefield timepicker">
        <input type="text" value="" name="outtime" placeholder="Outtime" required class="timefield timepicker">-->
        <input type="submit" value="Save" name="submit" class="btn buttonside1">                    
        </form>