PHP/HTML :获取google日历嵌入代码的用户输入

<form action="get_calendar.php" method="post">
  <label for="calendar_name">日历名称：</label>
  <input type="text" id="calendar_name" name="calendar_name"><br><br>
  <label for="calendar_id">日历ID：</label>
  <input type="text" id="calendar_id" name="calendar_id"><br><br>
  <input type="submit" value="获取嵌入代码">
</form>

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $calendarName = $_POST["calendar_name"];
  $calendarId = $_POST["calendar_id"];

  // 生成嵌入代码
  $embedCode = '<iframe src="https://calendar.google.com/calendar/embed?src=' . $calendarId . '" style="border: 0" width="800" height="600" frameborder="0" scrolling="no"></iframe>';

  // 显示嵌入代码
  echo "以下是您的Google日历嵌入代码：<br><br>";
  echo $embedCode;
}
?>