问Semantic-ui复选框和按钮检查PHP

EN

<form class="ui form" action="your_action.php" method="post">
   <div class="field">
    <label>First Name</label>
      <input type="text" name="first-name" placeholder="First Name">
   </div>    
  <div class="field">
   <div class="ui checkbox">
     <input name='check' type="checkbox" tabindex="0" class="hidden">
    <label>I agree to the Terms and Conditions</label>
   </div>
 </div>
  <button name='action' value="submit" class="ui button" type="submit">Submit</button>
</form>

if ($_REQUEST['action'] == 'submit') {
    if(isset($_REQUEST['check']) and $_REQUEST['check'] == 'on') {
      //do you stuff
    }

$('.ui.checkbox').checkbox(<i>behavior</i>, argumentOne, argumentTwo...);