如何通过一个按钮发送两个值？

Question

是否可以通过一个按钮提交两个值？

$orderby = $_GET['orderby'];

<form action="mypage.php" method="get">
<a><button name ="orderby" value="name" type="submit">&#9660;</button></a>
<a><button name ="orderby" value="age" type="submit">&#9660;</button></a>
</form>

我想象这样的事情：

<a><button name ="orderby" value1="name" value2="ASC" type="submit">&#9660;</button></a>
<a><button name ="orderby" value1="name" value2="DESC" type="submit">&#9660;</button></a>
<a><button name ="orderby" value1="age" value2="ASC" type="submit">&#9660;</button></a>
<a><button name ="orderby" value1="age" value2="DESC" type="submit">&#9660;</button></a>

Answer 1

您可以使用隐藏字段<input type="hidden"/>：

<?php
    $orderby = $_GET['orderby'];
?>
<form action="mypage.php" method="get">
    <input type="hidden" name="field" value="fieldname"/>
    <input type="hidden" name="orderby" value="<?= $orderby ?>"/>
    <button name ="submit" value="1" type="submit">&#9660;</button>
</form>