PHP表单 - 发送选定的信息

I'd like some help with a PHP form. The user on my form can select multiple products and amount of each products - I'm wondering, how can I make so that when the form is sent I can see what products and how much of each product the user has chosen in the mail?

The product list is in

 <ul class="list-group checked-list-box">
  <div class="col-xs-6">
    <li class="list-group-item" data-style="button">Product 1</li>
  </div>
  <div class="col-xs-6">
    <select class="form-control">
      <option value="0">0</option>
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
      <option value="4">4</option>
      <option value="5">5</option>
      <option value="6">6</option>
      <option value="7">7</option>
      <option value="8">8</option>
      <option value="9">9</option>
      <option value="10">10</option>
    </select>
  </div>
</ul>

<ul class="list-group checked-list-box">
      <div class="col-xs-6">
        <li class="list-group-item" data-style="button">Product 2</li>
      </div>
      <div class="col-xs-6">
        <select class="form-control">
          <option value="0">0</option>
          <option value="1">1</option>
          <option value="2">2</option>
          <option value="3">3</option>
          <option value="4">4</option>
          <option value="5">5</option>
          <option value="6">6</option>
          <option value="7">7</option>
          <option value="8">8</option>
          <option value="9">9</option>
          <option value="10">10</option>
        </select>
      </div>
    </ul>

Thank you for your answers.

Add name="amount[]" to both/all selects

<select class="form-control" name="amount[PRODUCT_ID_GOES_THERE]">
<!-- eg. <select class="form-control" name="amount[<?php echo $product_id ?>]"> -->

and then you will have values from them in:

$_POST['amount'][24] // amount of product with ID=24
$_POST['amount'][2]  // amount of product with ID=2

I really hope you are not building your product list by adding the same code over and over for each product.

There is a code approach called DRY, which means Don't Repeat Yourself. The benefit will come to you when you decide to make a change to the code and need to repeat that change multiple times.

Your code could look like this:

$my_products = array(
    '343' => 'Product 1',
    '4' => 'Product 2'
    ); // these values could be stored and retrieved from database

foreach ( $my_products as $key => $value ) {
    echo "<ul class=\"list-group checked-list-box\">";
      echo "<div class=\"col-xs-6\">";
        echo "<li class=\"list-group-item\" data-style=\"button\">$value</li>";
      echo "</div>";
      echo "<div class=\"col-xs-6\">";
        echo "<select class=\"form-control\" name=\"quantity[$key]>\"";
          for ( $i = 0; $i <= 10; $i++) echo "<option value=\"$i\">$i</option>";
        echo "</select>";
      echo "</div>";
    echo "</ul>";
}

Now if you want to add products, all you need to do is add an id and name to the $my_products array. If you want to change the code, you only have to change it in one spot.