使用XML和PHP从下拉列表中获取选定的值文本

<form method="post" action="process.php">
  <select name="mylist">
    <option value="option1">Option 1</option>
    <option value="option2">Option 2</option>
    <option value="option3">Option 3</option>
  </select>
  <input type="submit" value="Submit">
</form>

$selectedValue = $_POST['mylist'];