不确定回答我自己的问题是否合适,但我找到了一个答案,它是 Hassou 的答案和 javascript php 检测脚本的组合。
我修改的脚本来自这里:
http ://snippets.bluejon.co.uk/check4-js-and-cookies/check4-js-enabled-v2-phpcode.php
本质上,这个想法是使用 javascript 提交引用当前 url 的表单,结果会告诉您是否启用了 javascript...但是,只有当 javascript 在 iframe 中返回 true 时,这个想法才能很容易地更改为提交表单。然后,您可以将 $_POST 数据传递到表单中,以便继承 $_POST 数据(仅当在应用程序的显示层中引用了 $_POST 数据时才需要)。这是基本思想:
<?php
/* Include head of your application goes here, this should do whatever
session handling code you have and all processing done to the $_POST variables */
// ~~~~~~Full Url Function - Works With Mod_Rewrite~~~~~~~~~ //
// important thing is function will grab all $_GET vars
function fullurlnav()
{
$fullurlsortnav = 'http';
$script_name = '';
if(isset($_SERVER['REQUEST_URI']))
{
$script_name = $_SERVER['REQUEST_URI'];
}
else
{
$script_name = $_SERVER['PHP_SELF'];
if($_SERVER['QUERY_STRING']>' ')
{
$script_name .= '?'.$_SERVER['QUERY_STRING'];
}
}
if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']=='on')
{
$fullurlsortnav .= 's';
}
$fullurlsortnav .= '://';
if($_SERVER['SERVER_PORT']!='80')
{
$fullurlsortnav .=
$_SERVER['HTTP_HOST'].':'.$_SERVER['SERVER_PORT'].$script_name;
}
else
{
$fullurlsortnav .= $_SERVER['HTTP_HOST'].$script_name;
}
return $fullurlsortnav;
}
// ~~~~~~~~~~~End Full URL Function~~~~~~~~~ //
?>
<html>
<body>
<?php
// Only run this check if user has been identified as a facebook user in their session
// or if they've been identified via the $_POST['signed_request'], which facebook sends
// upon first request via iframe.
// Doing this removes the check when it's unneeded.
if (!isset($_POST['inIframe']) && ( isset($_SESSION['inIframe']) || isset($_POST['signed_request']) ) )
{
?>
<form name="postJs" action="<?php echo fullurlnav(); ?>" method="post">
<input type="hidden" name="inIframe" value="1">
<?php
// Carry over $_POST
foreach($_POST as $key => $value)
{
echo '<input type="hidden" value="'.$value.'" name="'.$key.'" />';
}
?>
</form>
<script type="text/javascript">
<!--
// If in an iframe
if (top !== self)
{
document.postJs.submit();
}
//-->
</script>
<?php
}
elseif(isset($_POST['inIframe']) && ( isset($_SESSION['inIframe']) || isset($_POST['signed_request']) ) )
{
$_SESSION['inIframe']=1;
}
else
{
$_SESSION['inIframe']=0;
}
if ($_SESSION['inIframe']== 1){
echo 'IS in an Iframe';
}else{
echo 'IS NOT in an Iframe';
}
// echo out rest of your template code
?>
</body>
</html>
它在您的页面显示代码输出和它的工作原理上有点棘手,但这是我到目前为止的基本想法。从技术上讲,可以将表单生成块与下面的 elseif else 语句分开,并在任何显示输出之前使用代码上方的那些,这可能更容易处理。请注意,上面的代码未经测试,只是为其他有相同问题的人提供基本思想。