如何将变量从 javascript 发送到 php 文件？ [关闭]

Question

例如我有一个变量

var test = "done";

如何将它发送到 php？然后贴出来

Answer 1

试试这段代码

<script>
 var test = "done";
 document.getElementById('sample').value = test;
</script>

<form method = "post">
   <input type="hidden" id="sample" name="stext">
   <input type="submit" name="submit" value="submit">
</form>

<?php
 echo $_POST['stext'];
?>