如何在mysql中输入包含许多项的客户订单

I have a restaurant pizzeria and I want to input in my mysql database the order of my clients, but I am having a problem how to input more than a type of pizza.

I am using a checkbox to select the items then go to this code:

<form id="detalhesdopedido" action="formadepagamento.php" method="post">
 <?php
   if (isset($_POST['submit'])) {
     echo"<table id='t02'>
    <tr>
     <th width='15%'>Quant</th><th width='40%'>Produtos </th><th width='15%'>Total</th>
     </tr>";
     $total = 0;

     if (isset($_POST['ch1'])) {
        echo "<tr><td>";
        echo  $_POST['qt1'] ;
        echo"</td>";
        echo "<td> Produto 1 </td>";
        echo "<td>";
        echo  $_POST['qt1'] * 10  ;
        echo"</td></tr>";
        $total += $_POST['qt1'] * 10;
    }

    if (isset($_POST['ch2'])) {
        echo "<tr><td>";
        echo  $_POST['qt2'] ;
        echo"</td>";
        echo "<td> Produto 2 </td>";
        echo "<td>";
        echo  $_POST['qt2'] * 20.30  ;
        echo"</td></tr>";
        $total += $_POST['qt2'] * 20.30;
    }

    if (isset($_POST['ch3'])) {
        echo "<tr><td>";
        echo  $_POST['qt3'] ;
        echo"</td>";
        echo "<td> Produto 3 </td>";
        echo "<td>";
        echo  $_POST['qt3'] * 30  ;
        echo"</td></tr>";
        $total += $_POST['qt3'] * 30;
    }

    if (isset($_POST['ch4'])) {
        echo "<tr><td>";
        echo  $_POST['qt4'] ;
        echo"</td>";
        echo "<td> Produto 4 </td>";
        echo "<td>";
        echo  $_POST['qt4'] * 40.50  ;
        echo"</td></tr>";
        $total += $_POST['qt4'] * 40.50;
    }

     if (isset($_POST['ch5'])) {
        echo "<tr><td>";
        echo  $_POST['qt5'] ;
        echo"</td>";
        echo "<td> Produto 5 </td>";
        echo "<td>";
        echo  $_POST['qt5'] * 50.45  ;
        echo"</td></tr>";
        $total += $_POST['qt5'] * 50.45;
       }
        echo "</table>";
        echo  "<div id='total'>Valor Total: " .$total. "</div>";
    }
 ?>
<button id="finalizar" type="submit">Finalizar Pedido</button>
                </form>

How do I insert this into the mysql database?

I want it to appear like this on the database:

cliente /order/quantity/total price

alex/ produto 1 , produto 2/ 2 , 3/ 34.50

or does someone know a better way to show me?

There is no information about the structure of your database.

What you can do is to have a few tables like this -

Product(_id, productName, price);
Order(_id, clientName, productIds, qtys, total);

For the Order table, productIds will be a foreign key to Product(_id) and under it, you can store the productIds for all the ordered products separated by a comma. Same for qtys.

Another approach can be

    Order(_id, clientName, productId, qty, total, timestamp);

where you can retrieve the records using the where and order by clauses