Php 如何从html5表单中添加复选框结果？

我在html5文档中使用了一个超级简单的表单。我目前不需要验证器或任何花哨的东西，但我很难找到如何在电子邮件中包含复选框的结果

html中的表单代码为：

<div id="subscribe_form">
<form action="mail.php" method="post" target="_blank">

 <input type="text" name="name" placeholder="Name" /><br>

<input type="email" name="email" placeholder="Email" /><br>

<textarea name="message" rows="6" cols="30" placeholder="Mailing Address" ></textarea><br />


<input type="checkbox" id="hascurrent" value="yes" />
<label for="hascurrent">I've already received the current issue of Critters &amp; Gods.</label>

<br>
<button type="submit" value="Send">Subscribe</button>

</form>

我已经收到了最新一期的《小动物》杂志；诸神。


订阅

整个mail.php表单包括：

<?php $name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$formcontent="Subscriber: $name Email: $email Address: $message Has current issue: $hascurrent";
$recipient = "subscriptions@crittersandgods.com";
$subject = "New Subscription";
$mailheader = "From: $email \r\n";
mail($recipient, $subject, $formcontent, $mailheader) or die("Error!");
echo "<div id='form_echo'> Thank you, $name, for subscribing to Critters & Gods. Your subscription is completely free and will not expire. If at any time you wish to unsubscribe from Critters & Gods, visit the about page for information. </div>";
?>

---

将
名称
属性添加到复选框
输入
：

<input type="checkbox" id="hascurrent" name="hasCurrent" value="yes" />

如果选中，
$hasCurrent
的值将为
yes
，否则为空

$hasCurrent = $_POST['hasCurrent'];